World No. 1 Dustin Johnson was coming off three consecutive victories when he arrived at Augusta National. He was the hottest player on the planet and the odds-on favorite to win the year’s first major. And then he slipped and fell on some stairs the night before the tournament, injuring his back. DJ arrived at the practice area on Thursday hoping to play, but after a warm-up session, he chose to withdraw. He would win again in the FedExCup Playoffs, and it is difficult to call a four-win campaign for the No. 1 player in the world a disappointment, but you just wonder what might have been had a healthy DJ played the Masters.