Andy Murray and Roger Federer have set up a mouth-watering quarter-final meeting at the Australian Open.
In their 20 professional meetings so far, Murray edges it, with 11 wins to Federer's 9. In amongst those meetings, Murray also beat his Swiss contemporary in the London 2012 Olympics final.
Here, we take a closer look at the meetings in the Grand Slam events...
US Open final 2008: Federer won 6-2, 7-5, 6-2
Murray’s first appearance in a Grand Slam final lasted less than two hours, but Federer had the advantage of a day of rest before the match.
Australian Open final 2010: Federer won 6-3, 6-4, 7-6
A high-quality match and much closer than the scoreline suggested. Murray led 5-2 in the third set and had five set points in the tie-break. “I can cry like Roger, it’s just a shame I can’t play like him,” a tearful Murray said afterwards.
Wimbledon final 2012: Federer won 4-6, 7-5, 6-3, 6-4
At the fourth attempt Murray won his first set in a Grand Slam final but Federer took charge after the Centre Court roof was closed early in the third set because of rain.
Australian Open semi-final 2013: Murray won 6-4, 6-7, 6-3, 6-7, 6-2
Murray twice put behind him the disappointment of losing tie-breaks. He hit 21 aces to Federer’s five and 62 winners to his opponent’s 43.
The two meet in Melbourne on Wednesday.