USA

In 2015 became only the sixth golfer to win majors at St Andrews and Augusta National, following Sam Snead, Jack Nicklaus, Nick Faldo, Seve Ballesteros and Tiger Woods.

"Humbling and surreal are two words that come to mind - I am fairly speechless right now," said the American, who completed a closing 66 at the Home of Golf with a 30-foot birdie putt and then beat Louis Oosthuizen and Marc Leishman in the four-hole play-off. His triumph came eight years on from a victory in The Masters where he defeated Woods, Rory Sabbatini and Retief Goosen by two, making him the first player from outside the world's top 50 to lift the title since the rankings began in 1986.

His Ryder Cup debut had come the previous year and he has been part of the last four United States teams, while he also has four Presidents Cup caps and 12 PGA Tour victories to his name, plus the 2013 World Challenge when he overcame Woods in a play-off after holing out from a drop zone on the final hole. He and Phil Mickelson are the only players to have had two rounds of 60 on the PGA Tour.