(CNN) -- You are only a short putt away from a major championship and golfing immortality. You can already taste the acclaim, hear the roars from the gallery crowded round the 18th green and smell the bundles of cash heading your way. But then an image of Rory McIlroy slumped over his driver at Augusta in 2011 flashes through your mind, Adam Scott sinking to the turf at the British Open a year later after throwing away a four-shot lead. Before you know it, you're having dark visions of Jean Van de Velde wading through the Barry Burn at Carnoustie during his own British Open meltdown in 1999.Work on mental preparation has become a vital part of golf in recent timesDr. Bob Rotella has coached some of the game's biggest starsRotella's mantra to his players is "You're unstoppable if you're unflappable"He has worked with major champions Rory McIlroy and Keegan Bradley
It is the final major of the golf season -- where _ will defend his title, and world No. After his triumph, Bradley said he actually felt energized after his mistake, such was the positive frame of mind _ had helped him download.