---"We have been here before, of course. From Augusta in 2011 to Pinehurst last year, history is instructive, a tournament not over until its over, the presence of DeChambeau a recurring motif. His outstanding finish from the fringe, curling home a putt at the 18th, may in time come to be seen as tournament-turning moment. He is one of few who can stroke-for-stroke with McElroy, but the psychological battle could be just as fascinating. Rory McIlroy takes a two-shot lead into Sunday "
