AUGUSTA, Ga. (Reuters) - Golf’s muscular mad professor Bryson DeChambeau arrived at the Masters with a plan to humble Augusta National but left a chastened man on Sunday, finishing well down the leaderboard after a closing one-over 73.The big-hitting DeChambeau, who had been the pre-tournament favourite, had boldly suggested that he saw the famous par-72 layout as a par-67 with his prodigious power allowing him reach the par-fives in two shots and some par-fours in one. But Augusta National let the U.S. Open champion know that it takes more than howitzer drives to walk away with the Green Jacket. DeChambeau would finish with more double bogeys (two) than eagles (one) with a triple bogey thrown in for good measure in his two-under 286 total a massive 18 shots back of winner Dustin Johnson. It all went wrong with a double-bogey on his fourth hole of the opening round, the par-five 13th, and it then went downhill from there.