Players Championship highlights: Best action, shots and scores from Round One

Dustin Johnson is one of six players sharing the lead after Round One at Sawgrass

Dustin Johnson signalled his intention to remain world number one with an opening 66 in the Players Championship at Sawgrass.

Johnson's position at the top of the rankings, which he has held since February last year, is under threat from Justin Thomas, Jon Rahm, Jordan Spieth and Justin Rose.

But the former US Open champion is not about to make life easy for his rivals and carded six birdies in an error-free first round to share with compatriots Webb Simpson, Chesson Hadley, Matt Kuchar and Patrick Cantlay and Sweden's Alex Noren.

Rose is just two shots off the lead after a 68, but Thomas could only manage a one-over-par 73 and Spieth fared even worse with a 75 which featured four bogeys, a double bogey and an eagle on the short par-four 12th. Rahm was among the later starters.

Check out the highlights in the video above.

Selected scores:

66 Dustin Johnson, Alex Noren (Swe), Patrick Cantlay, Matt Kuchar, Chesson Hadley, Webb Simpson

67 Steve Stricker, Rory Sabbatini (Rsa), Andrew Landry, Keith Mitchell, Jhonattan Vegas (Ven), Si Woo Kim (Kor)

68 Xander Schauffele, Charl Schwartzel (Rsa), Lucas Glover, Cody Gribble, Bubba Watson, Charles Howell III, Danny Lee (Nzl), Justin Rose (Eng), Ollie Schniederjans, Sergio Garcia (Spa), Jon Rahm (Spa), Cheng-Tsung Pan (Twa), Billy Horschel, Henrik Stenson (Swe)

69 Jason Day (Aus), Adam Scott (Aus), Branden Grace (Rsa), Kevin Na, Emiliano Grillo (Arg), Keegan Bradley, Tommy Fleetwood (Eng), Jimmy Walker, John Huh, Nick Taylor (Can), Brice Garnett, Anirban Lahiri (In)

World number one Johnson looks in good touch (Getty)

70 Nick Watney, Scott Brown, Ross Fisher (Eng), Tony Finau, Richy Werenski, Bryson DeChambeau, Kevin Tway, Luke List, Chris Kirk, Chris Stroud, Beau Hossler, Kevin Streelman, Tom Hoge, Brooks Koepka, Ted Potter, Jr., Ian Poulter (Eng)

71 Charley Hoffman, Zach Johnson, Harold Varner III, Byeong-Hun An (Kor), Martin Kaymer (Ger), Chez Reavie, Rory McIlroy (Nir), Kiradech Aphibarnrat (Tha), Wesley Bryan, Marc Leishman (Aus), Ryan Blaum, J.J. Spaun, Rafael Cabrera-Bello (Spa), Ryan Moore

72 Tiger Woods, Jason Kokrak, Vaughn Taylor, Austin Cook, Brian Gay, Adam Hadwin (Can), Grayson Murray, Russell Henley, Martin Laird (Sco), Patrick Reed, Jason Dufner, Kevin Chappell, Brendan Steele, Trey Mullinax, J.J. Henry, Patton Kizzire, Matthew Fitzpatrick (Eng)

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