The Masters 2012: five to watch at Augusta National But perhaps the most important thing Bradley brings to the Augusta party is courage. At last year's PGA Championship in Atlanta, where he became one of only three players to win a major at their first attempt, he triple-bogeyed the 15th hole but fought back with two birdies in his next three holes to force - and then win - the play-off. Of such stuff are Masters champions made. Phil Mickelson Whatever happened to Flakey Phil? Formerly the Forrest Gump of US golf, Mickelson has lost his gift for imploding within sight of the finishing line since he broke his major duck at Augusta in 2004. A three-time winner of the green jacket, the 41-year-old world No 15 was a winner at Pebble Beach a few weeks ago. Graeme McDowell A couple of years ago it looked as if McDowell could do no wrong as he won the US Open and sank the winning putt at the Ryder Cup. He slipped back last year, though, dropping down the rankings as he watched his fellow Ulstermen Rory McIlroy and Darren Clarke match his major-winning feat. His Masters record is poor, but a second place at Bay Hill last week suggests that his form could be back. Martin Kaymer One of golf's great enigmas when it comes to the big occasions. Kaymer is Mr Methodical on the course, but Mr Wayward on major championship scoreboards. The German, fourth in the world, was almost untouchable when he won his PGA Championship a couple of years ago, and has played brilliantly in WGC events as well, but his Masters record is execrable: four appearances, four missed cuts. Justin Rose The player who lit up the golfing world at the Royal Birkdale Open in 1998 may never have been in better shape going into a major. Probably the streakiest of all the English challengers, he is in rich form and his win at the WGC-Cadillac Championship lifted him to eighth in the world. If he can hold his game together and get his putter working properly he could be in the mix come Sunday evening.