") no-repeat center center;background-size:10px 16px;content:' '}@media(min-width:768px){.egqDdf::before{display:none}}.hzcAyL{min-height:389px;margin-bottom:16px;clear:both}@media(min-width:1000px){.hzcAyL{min-height:380px}}.fGzMFb{width:100%;box-sizing:border-box}@media(min-width:768px){.fGzMFb{max-width:634px}}@media(min-width:1250px){.fGzMFb{max-width:622px}}.hHATii{display:flex;width:auto;box-sizing:border-box;align-items:center;justify-content:flex-start;gap:4px;color:#ec1a2e;color:light-dark(#ec1a2e,#ec1a2e)}.frlkrE{display:block;font:bold 14px/20px 'Indy Sans','Indy Sans Fallback',sans-serif;text-decoration-line:underline;margin-block:0;text-align:center}.gFogGN{display:inline-flex;align-items:center;justify-content:center;gap:4px}.gFogGN:hover .sc-aja53j-2,.gFogGN:hover .sc-a5wy94-0{color:#ac2a2c;color:light-dark(#ac2a2c,#f58992)}.cDGSNR{font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.eSVQSf{display:flex;position:relative;overflow:hidden;width:auto;height:40px;flex-direction:column;order:-1;gap:8px;opacity:1;transition:all .5s ease-in-out;transition-behavior:allow-discrete}.eSVQSf::after{--fade-from:rgba(255,255,255,0);--fade-mid:rgba(255,255,255,0.5);--fade-to:#fff;position:absolute;bottom:0;left:0;z-index:1;width:100%;height:40px;background-image:linear-gradient(to bottom,var(--fade-from) 0,var(--fade-mid) 50%,var(--fade-to) 100%);content:'';opacity:1;pointer-events:none;transition:opacity 150ms ease-out}@supports(color:light-dark(red,red)){.eSVQSf::after{--fade-from:light-dark(rgba(255,255,255,0),rgba(0,0,0,0))}}@supports(color:light-dark(red,red)){.eSVQSf::after{--fade-mid:light-dark(rgba(255,255,255,0.5),rgba(0,0,0,0.5))}}@supports(color:light-dark(red,red)){.eSVQSf::after{--fade-to:light-dark(#fff,#000)}}@media(min-width:768px){.fiXggt{order:-1}}@media(min-width:768px){.jikgMc{display:flex;position:relative;align-items:flex-start;margin-top:12px}}@media(min-width:1000px){.iZGsHB .taboola{display:none}}.iZGsHB:has(#taboola-carousel-thumbnails){min-height:426px}.iZGsHB:has(#taboola-mid-article-thumbnails-crime){min-height:405px}@media(min-width:1000px){.iZGsHB:has(#taboola-carousel-thumbnails),.iZGsHB:has(#taboola-mid-article-thumbnails-crime){min-height:0}}.fLVhoJ .tp-container-inner,.fLVhoJ .sc-1suqprf-0{position:relative;box-shadow:0 -22px 16px 22px rgba(255,255,255,0.95);box-shadow:0 -22px 16px 22px light-dark(rgba(255,255,255,0.95),rgba(0,0,0,0.95))}.fLVhoJ.closed{display:none}.LyMAA{width:32px}.LyMAA,.LyMAA:focus{color:#3b5998;color:light-dark(#3b5998,#627aac)}.LyMAA:hover,.LyMAA:active,.LyMAA:focus-visible{color:#2f4779;color:light-dark(#2f4779,#9cabcb)}@media(min-width:768px){.LyMAA.mobile-only{display:none}}.dwVQBR{width:32px}.dwVQBR,.dwVQBR:focus{color:#000;color:light-dark(#000,#4e4e4e)}.dwVQBR:hover,.dwVQBR:active,.dwVQBR:focus-visible{color:#4e4e4e;color:light-dark(#4e4e4e,#919191)}@media(min-width:768px){.dwVQBR.mobile-only{display:none}}.dxQkdZ{width:32px}.dxQkdZ,.dxQkdZ:focus{color:#25d366;color:light-dark(#25d366,#25d366)}.dxQkdZ:hover,.dxQkdZ:active,.dxQkdZ:focus-visible{color:#1da851;color:light-dark(#1da851,#1da851)}@media(min-width:768px){.dxQkdZ.mobile-only{display:none}}.fKhHgh{width:32px}.fKhHgh,.fKhHgh:focus{color:#ec1a2e;color:light-dark(#ec1a2e,#ec1a2e)}.fKhHgh:hover,.fKhHgh:active,.fKhHgh:focus-visible{color:#ac2a2c;color:light-dark(#ac2a2c,#ac2a2c)}@media(min-width:768px){.fKhHgh.mobile-only{display:none}}.fMVKDn{display:flex;gap:12px}.kHbRaW .sc-17yxc4y-0{display:none}.kHbRaW:hover .sc-17yxc4y-0,.kHbRaW.bookmark-button-saved .sc-17yxc4y-0{display:block}.kHbRaW:hover .sc-17yxc4y-1,.kHbRaW.bookmark-button-saved .sc-17yxc4y-1{display:none}.kHbRaW.bookmark-button-saved .sc-17yxc4y-0{display:block}.kHbRaW.bookmark-button-saved .sc-17yxc4y-1{display:none}.kHbRaW.bookmark-button-saved:hover .sc-17yxc4y-0{display:none}.kHbRaW.bookmark-button-saved:hover .sc-17yxc4y-1{display:block}.eoiTHI{display:inline-block;width:32px;height:32px;color:#337e81;color:light-dark(#337e81,#337e81)}.gsHIni{display:flex;flex-direction:row;justify-content:center;gap:12px}.jTEZjg{display:flex;position:relative;justify-content:center}@media(min-width:768px){.jTEZjg{justify-content:flex-end;padding-top:12px;margin:0}}.laxBOB{display:flex}.sticky .laxBOB{flex-direction:column}.hDXmfN{overflow:hidden;height:23px;margin-bottom:8px;border-bottom:0;clear:both}@media(min-width:768px){.hDXmfN{height:25px}}.jGyHqZ{display:inline-block;flex-shrink:0;margin:0 12px 0 0;font:bold 14px/normal 'Indy Sans','Indy Sans Fallback',sans-serif}.jGyHqZ::after{content:':'}.bsdbXr{display:inline-block;margin-right:12px;margin-bottom:4px;color:#222;color:light-dark(#222,#fff);font:normal 14px/1.29 'Indy Sans','Indy Sans Fallback',sans-serif;text-decoration:underline}.bsdbXr::first-letter {text-transform:capitalize}@media(min-width:1000px){.subscribed .eWQiqu{margin-top:-184px}.article-feature:not(.article-feature-video) .subscribed .eWQiqu{margin-top:-407px}}.eWQiqu>p{margin:16px 0}.article-premium .eWQiqu>p{line-height:27px}.eWQiqu>h2{font-size:21px}.article-climate .eWQiqu>h2{color:#ec1a2e;color:light-dark(#ec1a2e,#ec1a2e)}.article-sgi .eWQiqu>h2{color:#ec1a2e;color:light-dark(#ec1a2e,#ec1a2e)}.eWQiqu>p:first-child{margin-top:0}.eWQiqu span:first-child~p:first-of-type{margin-top:0}.gCqUwG{display:flex;position:relative;max-width:100%;min-height:600px;justify-content:center;margin:0 auto;background-color:transparent;clear:both}@media(min-width:1000px){.gCqUwG{min-height:450px}}.teads .gCqUwG{display:block}.gCqUwG [data-mpu]{position:sticky;top:16px}.cGmNxG{overflow:hidden;width:100%;box-sizing:border-box;margin-bottom:16px}@media(min-width:768px){.cGmNxG{max-width:634px}}@media(min-width:1250px){.cGmNxG{max-width:622px}}.iqSitv{width:100%;box-sizing:border-box;padding:8px 12px 12px;border-top:8px solid #ec1a2e;border-top:8px solid light-dark(#ec1a2e,#ec1a2e);background-color:#fde8ea;background-color:light-dark(#fde8ea,#66000a)}@media(min-width:768px){.iqSitv{padding-top:4px;padding-bottom:12px}}.dlmCG{font:bold 22px/26px 'Indy Serif','Indy Serif Fallback',serif;margin:0 0 12px;text-align:center}@media(min-width:768px){.dlmCG{font:bold 30px/34px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.048px;margin-bottom:12px;text-align:left}}.JMagJ{display:block;margin-bottom:12px}@media(min-width:768px){.JMagJ{display:none}}.eRfgdl{display:flex;width:100%;box-sizing:border-box;align-items:center;justify-content:center;gap:4px;background-color:#fde8ea;background-color:light-dark(#fde8ea,#66000a);color:#ec1a2e;color:light-dark(#ec1a2e,#ec1a2e)}@media(min-width:768px){.eRfgdl{width:auto;justify-content:flex-start}}.icmspM{display:block;font:bold 14px/20px 'Indy Sans','Indy Sans Fallback',sans-serif;text-decoration-line:underline;margin-block:0;text-align:center}.jEzKon{display:inline-flex;align-items:center;justify-content:center;gap:4px}.jEzKon:hover .sc-hez36s-5,.jEzKon:hover .sc-a5wy94-0{color:#ac2a2c;color:light-dark(#ac2a2c,#f58992)}.kxbAkl{font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.igdyzJ{display:flex;width:100%;flex-direction:column}@media(min-width:768px){.igdyzJ{display:flow-root;gap:24px;transition:margin-bottom .3s ease-in-out}}.jDeUSg{display:flex;width:100%;flex-direction:column;align-items:center;justify-content:center}@media(min-width:768px){.jDeUSg{position:relative;z-index:1;width:212px;flex-shrink:0;justify-content:flex-start;margin-left:24px;float:right}}.bBLSBr{display:none;flex-direction:row;align-items:center;justify-content:center;gap:8px;margin-top:8px}@media(min-width:768px){.bBLSBr{display:flex;margin-top:12px}}.DIgLQ{display:flex;width:100%;align-items:center;justify-content:center;gap:8px;margin-top:8px;margin-bottom:12px}@media(min-width:768px){.DIgLQ{display:none}}@media(min-width:768px){.cPkZJS{order:-1}}.fJelbS .sc-aja53j-5::after{--fade-from:rgba(253,232,234,0);--fade-mid:rgba(253,232,234,0.5);--fade-to:#fde8ea}@media(min-width:360px){.fJelbS .sc-aja53j-5 .sc-aja53j-7{display:none}}@supports(color:light-dark(red,red)){.fJelbS .sc-aja53j-5::after{--fade-from:light-dark(rgba(253,232,234,0),rgba(102,0,10,0))}}@supports(color:light-dark(red,red)){.fJelbS .sc-aja53j-5::after{--fade-mid:light-dark(rgba(253,232,234,0.5),rgba(102,0,10,0.5))}}@supports(color:light-dark(red,red)){.fJelbS .sc-aja53j-5::after{--fade-to:light-dark(#fde8ea,#66000a)}}.kGYWZt{margin:0 0 24px;font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.eXohla{font:bold 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.bXaOEb{display:flex;min-height:600px;justify-content:center}@media(min-width:1000px){.bXaOEb{min-height:450px}}.dlrgtE{min-height:600px}@media(min-width:1000px){.dlrgtE{min-height:450px}}.dlrgtE.mobile-only{display:block}@media(min-width:1000px){.dlrgtE.mobile-only{display:none}}.dlrgtE.desktop-only{display:none}@media(min-width:1000px){.dlrgtE.desktop-only{display:block;margin-bottom:16px}}.dlrgtE.desktop-only+p{margin-top:0}.dlrgtE .third-party-ad{position:sticky;top:16px}.fhuRbW{width:100%;flex-grow:1}.fhuRbW .social-share{width:100%;padding-top:10px;padding-bottom:20px}@media(min-width:768px){.fhuRbW .social-share{justify-content:flex-start}}.fhuRbW .social-share.sticky{display:none}@media(min-width:1000px){.fhuRbW .social-share.sticky{display:flex;position:sticky;top:14px;width:34px;flex-direction:column;padding-top:0;margin-top:0;margin-left:-25%}.fhuRbW .social-share.sticky .sc-mgcah7-0{margin:0 0 16px}.article-feature-video .fhuRbW .social-share.sticky{margin-top:0}.article-feature:not(.article-feature-video) .fhuRbW .social-share.sticky{margin-top:35%}}.fhuRbW.sponsored-article img,.fhuRbW.sponsored-article video{width:100%;max-width:602px;height:auto}.fhuRbW.sponsored-article iframe{max-width:602px;max-height:400px}.fhuRbW .under-article-prompt-donations{padding-bottom:8px;margin-top:-3px}.fhuRbW .big-letter{--color:#222;display:flex;position:relative;width:0;height:0;align-items:center;justify-content:center;padding:40px;margin-top:22px;margin-right:12px;border:1px solid var(--color);float:left;font:normal 52px/1 'Indy Serif','Indy Serif Fallback',serif;text-transform:uppercase}.fhuRbW .big-letter:first-child{margin-top:6px}.fhuRbW .big-letter::before{position:absolute;top:0;left:0;width:100%;height:100%;box-sizing:border-box;border:1px solid var(--color);border-radius:50%;content:''}.fhuRbW #taboola-below-article-1{min-height:2350px}@media(min-width:768px){.fhuRbW #taboola-below-article-1{min-height:3370px}}.fhuRbW #taboola-below-article-1-split-num-1{min-height:130px}@media(min-width:768px){.fhuRbW #taboola-below-article-1-split-num-1{min-height:415px}}.fhuRbW .sc-fwko30-0+.sc-1xtsh2b-0{margin-top:-16px}@media(min-width:768px){.fhuRbW{max-width:636px;margin:0}}@media(min-width:1000px){.fhuRbW{max-width:624px;margin:0}.fhuRbW.subscribed{max-width:636px}}@media(max-width:999px){.fhuRbW{padding-right:0}.fhuRbW .under-article-prompt-donations{margin-top:-18px}}.fhuRbW .anchor-nav-header{scroll-margin-top:79px}.fhuRbW .anchor-nav-header a{color:#222;color:light-dark(#222,#fff)}.fhuRbW .anchor-nav-header a:hover{color:#222;color:light-dark(#222,#fff)}@supports(color:light-dark(red,red)){.fhuRbW .big-letter{--color:light-dark(#222,#fff)}}.enFqNy{display:flex;flex-wrap:wrap;justify-content:flex-start;margin-bottom:8px;color:#646464;color:light-dark(#646464,#bdbdbd);font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}@media(min-width:768px){.enFqNy{width:70%;align-items:center;justify-content:flex-start;margin-bottom:0;font:normal 16px/24px 'Indy Sans','Indy Sans Fallback',sans-serif}}@media(min-width:1000px){.enFqNy{width:70%;margin-bottom:0}}.hWBwna{display:flex;height:20px;margin:0 12px 8px 0}.article-voices .hWBwna{height:auto}@media(min-width:425px){.article-voices .hWBwna{height:20px}}.hWBwna::before{display:inline-block;align-self:center;margin-top:1px;margin-right:12px;content:'\2022';transform:scale(1.5)}.hWBwna:first-child::before{content:none}@media(min-width:768px){.hWBwna{height:24px;margin-bottom:0}.hWBwna::before{margin-top:2px}}.hWBwna time{display:block}.hWBwna time::first-letter {text-transform:capitalize}.hYsQrG{display:inline-block;margin:0 12px 8px 0;color:#ec1a2e;color:light-dark(#ec1a2e,#ec1a2e);font:bold 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif;letter-spacing:-0.5px}.hYsQrG:hover,.hYsQrG:active{color:#ac2a2c;color:light-dark(#ac2a2c,#ac2a2c)}@media(min-width:768px){.hYsQrG{margin-bottom:0}}.hSzzTd{margin:0 4px 8px 0}.hSzzTd::before{display:inline-block;margin-top:2px;margin-right:12px;color:#646464;color:light-dark(#646464,#bdbdbd);content:'\2022';transform:scale(1.5)}.hSzzTd:first-child::before{display:none}@media(min-width:768px){.hSzzTd{margin-bottom:0}}.fkbzZm{display:flex;justify-content:flex-start;padding:0;margin:0 0 16px}@media(min-width:768px){.fkbzZm{display:flex;width:30%;align-items:center;justify-content:flex-end;margin:0}}@media(min-width:1000px){.fkbzZm{width:30%}}.eTZxgZ{padding-top:0;border-top:0;border-bottom:0}@media(min-width:768px){.eTZxgZ{display:flex;flex-flow:row wrap;padding-bottom:16px}.eTZxgZ .sc-mzrbq8-0{order:1}.eTZxgZ .sc-mzrbq8-6{order:2}}@media(min-width:1000px){.eTZxgZ{flex-direction:row}}.hkkJDp{padding:16px 12px 12px;text-align:left;font:bold 14px/18px 'Indy Sans','Indy Sans Fallback',sans-serif}@media(min-width:768px){.hkkJDp{padding:16px 16px 12px}}.article-infact .hkkJDp{padding:16px 0}@media(min-width:1000px){.hkkJDp{padding:24px 0 19px}.article-feature .hkkJDp{max-width:968px;margin:0 auto}}.hkkJDp a{color:#222;color:light-dark(#222,#fff)}.hkkJDp a:hover{color:#ac2a2c;color:light-dark(#ac2a2c,#f58992)}.hkkJDp a:hover::after{color:#222;color:light-dark(#222,#fff)}.hkkJDp a::after{margin-right:4px;margin-left:4px;content:'>'}.hkkJDp a:last-child::after{display:none}.hMldFc{margin:0 0 20px;letter-spacing:0}.bWngPc{margin:0;color:#646464;color:light-dark(#646464,#bdbdbd);font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}@media(min-width:768px){.bWngPc{font:normal 18px/22px 'Indy Sans','Indy Sans Fallback',sans-serif}}@media(min-width:1000px){.bWngPc{font:normal 20px/24px 'Indy Sans','Indy Sans Fallback',sans-serif}}.bWngPc p{font:inherit}.article-feature .bWngPc a{font-weight:bold}.dnkfpp{max-width:968px;margin:0 auto;background:#fff;background:light-dark(#fff,#000)}@media(min-width:1000px){.dnkfpp{padding:0 16px}.parallax .dnkfpp{max-width:1240px}}.Rdknw{font:bold 32px/36px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.0156em}@media(min-width:768px){.Rdknw{font:bold 44px/48px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.0113em}}@media(min-width:1000px){.Rdknw{font:bold 54px/58px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.0092em}}.gwrTGe .sc-qvufca-0{margin:0 12px}@media(min-width:768px){.gwrTGe .sc-qvufca-0{max-width:968px;margin-right:16px;margin-left:16px}}@media(min-width:1000px){.gwrTGe .sc-qvufca-0{margin-right:auto;margin-left:auto}}.gwrTGe .sc-qvufca-2{margin-bottom:16px;color:#222;color:light-dark(#222,#fff)}@media(min-width:768px){.gwrTGe .sc-qvufca-2{margin-bottom:18px}}@media(min-width:1000px){.gwrTGe .sc-qvufca-2{margin-top:0}}.article-feature .gwrTGe .sc-qvufca-2{text-align:center}@media(min-width:1000px){.article-feature .gwrTGe .sc-qvufca-2{max-width:968px}}.gwrTGe .sc-aeekvc-0{margin-bottom:16px}@media(min-width:1000px){.gwrTGe .sc-aeekvc-0{max-width:968px}}.gwrTGe .sc-aeekvc-0 p{margin-top:0}@media(min-width:768px){.gwrTGe .sc-aeekvc-0 p{margin-bottom:16px}}@media(min-width:2560px){.gwrTGe .sc-aeekvc-0 p{margin-bottom:12px}}.iExVwO{overflow:hidden;height:0;color:transparent}.VkEbW{max-width:100%;margin:0 0 20px}.VkEbW.sticky{position:sticky;top:16px}.jpuEXf{min-height:600px}.jpuEXf #mpu1,.jpuEXf #sidebar1{position:sticky;top:16px}.bIVNVq{min-height:250px}.dcXsiQ{max-width:100%}.loNRDw{margin:0 0 6px;color:#646464;color:light-dark(#646464,#bdbdbd);font-family:'Indy Sans','Indy Sans Fallback',sans-serif;font-size:15px}.ezMsnK{margin:0 0 12px}.iIPWMQ{height:380px}.gXoWZo{width:100%;height:51px}.hjNIYD{margin-bottom:16px;border-bottom:1px solid #919191;border-bottom:1px solid light-dark(#919191,#646464)}.vzWDo{margin-bottom:16px}.vzWDo [role='listitem']{position:relative;margin-bottom:12px;border-bottom:1px solid #d3d3d3;border-bottom:1px solid light-dark(#d3d3d3,#919191)}.vzWDo [role='listitem'] .sc-u4n1j-0{display:flex;position:absolute;bottom:16px;left:10px;width:32px;height:32px;align-items:center;justify-content:center;border-radius:50%;background-color:#ec1a2e;background-color:light-dark(#ec1a2e,#ec1a2e)}.vzWDo [role='listitem'] .sc-u4n1j-0>svg{width:90%;fill:#fff;fill:light-dark(#fff,#000);stroke:transparent}.vzWDo [role='listitem']:first-child{display:block;padding-bottom:0;margin-bottom:12px}.vzWDo [role='listitem']:first-child .sc-u4n1j-0{top:-15px;bottom:auto;left:12px}.vzWDo [role='listitem']:first-child>*:first-child{display:block;width:100%;height:205px}.vzWDo [role='listitem']:first-child>*:last-child{--content-bg:#222;--content-bg-opaque:rgba(34,34,34,0.7);position:absolute;bottom:0;width:100%;padding:28px 12px 12px;background:linear-gradient(to top,var(--content-bg) 70%,var(--content-bg-opaque) 100%) no-repeat;color:#fff;color:light-dark(#fff,#222);font-size:17px;font-weight:bold}.vzWDo [role='listitem']:last-child{margin-bottom:0;border-bottom:0 none}@supports(color:light-dark(red,red)){.vzWDo [role='listitem']:first-child>*:last-child{--content-bg:light-dark(#222,#000)}}@supports(color:light-dark(red,red)){.vzWDo [role='listitem']:first-child>*:last-child{--content-bg-opaque:light-dark(rgba(34,34,34,0.7),rgba(0,0,0,0.7))}}.clClJO{min-height:1924px}@media(max-width:767px){.clClJO{display:none}}.doEDPw{width:308px}.doEDPw.hidden{display:none}@media(max-width:999px){.doEDPw{display:none}}.article-liveblog .ebbjSB{background-color:#f7f7f7;background-color:light-dark(#f7f7f7,#222)}.ghFVC{justify-content:center}.clCHwE{justify-content:center}
Sport Snooker Ronnie O’Sullivan holds off Si Jiahui as Judd Trump surges into semi-final with Mark Williams The Rocket held off a brief fightback from his opponent to set up an encounter with Zhao Xintong
open image in gallery
Ronnie O'Sullivan is into the last four in Sheffield (Getty Images) Your support helps us to tell the story From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.
At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.
The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.
Your support makes all the difference. Read more Ronnie O'Sullivan repelled a stirring fightback from Si Jiahui to set up a mouthwatering semi-final against Zhao Xintong at the World Snooker Championship in Sheffield.
The seven-time champion twice saw his 22-year-old opponent pull back to within two frames, but held his nerve and a break to black of 76 confirmed his 14th appearance in the Crucible's last four.
O'Sullivan was predictably downbeat afterwards, insisting it was Si's poor performance in the early stage of the match, rather than his own late revival, that paved his way to another unconvincing victory.
"I got off the hook again," O'Sullivan said. "He played pretty poorly in the first two sessions and he did better in the third session but he didn't finish the frames off and I stole a few.
"I have relied on other people to win and that doesn't feel good for me. I always feel better when I force the opening and put the pressure on my opponents. You feel a lot better when you've won the match rather than they've lost it."
Si, a shock semi-finalist on his debut two years ago, showed few signs of repeating that form in the early stages and O'Sullivan was barely forced to break sweat as he took the first frame of the second session to ease into a 7-2 lead.
O'Sullivan, playing his first tournament since he dumped his cue in a bin after crashing out of the Championship League in January, had impressed in patches in his wins over Ali Carter and Pang Junxu in the earlier rounds, and Si did not appear to be the man to test his limits.
But after starting the final session four frames adrift at 10-6, Si's fluency showed signs of returning, and with O'Sullivan's game becoming increasingly scattered with errors, the underdog won three from four to reach the interval just two behind at 11-9.
Si had a big chance to make it 11-10 but missed a yellow and a vintage run of 36 from O'Sullivan took him one frame away from victory.
Still playing fluently, Si got in first in the 22nd frame and fashioned a 43-point lead, before a miss on the brown served up a chance which O'Sullivan seized to confirm his clash against rising star Zhao.
open image in gallery
Ronnie O’Sullivan proved too good for Si Jiahui (Getty Images) The 28-year-old completed his serene progress to the last four as he took the one frame he required to complete an emphatic 13-5 win over Chris Wakelin.
Meanwhile, Judd Trump wrapped up his record-breaking charge into the semi-finals with a 13-8 win over fellow former champion Luca Brecel at the Crucible.
Trump reeled off five straight frames after starting the final session of a high-octane contest all-square, including two more centuries that took his total number of hundred breaks for the season to 104.
That saw him equal then surpass Neil Robertson's 11-year-old record as 35-year-old Trump sealed his last-four clash against Welsh veteran Mark Williams in style.
open image in gallery
Judd Trump produced a record-breaking century against Luca Brecel (Getty Images) Trump insisted: "I don't really care about that record. I was just happy to make the breaks at the important times, no matter what they were. It was just about digging in and putting him under pressure."
The 2019 champion had looked shell-shocked through an explosive afternoon session in which Brecel, showing glimpses of the form that swept him to the world title two years ago, completed a run of six straight frames as he blazed into a 7-5 lead.
Brecel, who had trailed 5-1 during Tuesday's opening session, polished off three centuries of his own in a run that threatened to extend Trump's long wait for a second world crown.
Crucially, Trump chiselled out the final frame of the afternoon session to go in at 8-8, and after a break of less than two hours, the world number one stepped up the pace when it mattered to complete victory with something to spare.
"It was obviously a tough second session," added Trump. "I think Luca played brilliant snooker. I just had to grind it out and battle away and I was very happy to get out at 8-8."
Trump relished his semi-final clash with Williams, who earlier held off a superb fightback from fellow former winner John Higgins to triumph in a last-frame decider and reach his eighth Crucible semi-final.
open image in gallery
Mark Williams (left) overcame John Higgins (right) in an epic quarter-final (PA Wire) "Mark came through an absolute epic," said Trump. "It was a great advert for snooker. Mark has been in quite a few classics at the Crucible, and it just shows the hunger and determination of the 'Class of '92'."
Williams and Higgins, who have won seven world titles between them, were locked at 8-8 at the end of their second session before Williams put himself on the brink by taking all four frames on Wednesday's resumption.
Four-time champion Higgins, though, dug in following the mid-session interval with breaks of 94, 114 and 67 to force a decider, which Williams took after his opponent missed a tense blue on the top cushion to seal a 13-12 victory.
"There was not one bit of nerves," Williams said to the BBC afterwards. "I don't really get it. I've only had nerves a handful of times in my career.
"I wasn't thinking he (Higgins) would miss it. From 12-8 to 12-all I had not done much wrong and I was thinking, 'what can I do?'
"It's just a pleasure playing now. We got the standing ovation walking in and everyone was cheering. You have to enjoy it because you don't know how many times you'll be coming back here."
PA
Thank you for registering Please refresh the page or navigate to another page on the site to be automatically logged in Please refresh your browser to be logged in
Join our commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies
Comments