Rory McIlroy was miserable at Merion and he took out his frustrations on his club on No 11 on Sunday. His first tee shot plopped in the water. He took a drop, then sent another ball into the same creek.

McIlroy then jammed the club into the ground and completely twisted the head.

"I think that's what this tournament does to you," he said. "At one point or another, it's got the better of you, and it definitely did this weekend."