Masters 2012: Luke Donald 'flat' after third round at Augusta

World number one Luke Donald admitted to feeling "flat" after a third-round three-over-par 75 all-but ended his hopes of winning the 2012 Masters.

The Englishman started well, holing an 80-yard wedge for an eagle two on three but a double-bogey on the 13th checked his progress as he ended seven over.

"I was playing fine and hit a decent shot [to 13 but] it missed carrying by two inches and I made seven," he said.

"I feel a bit flat. I'd high hopes and expectations and it hasn't panned out."

Donald dropped another shot on on the 14th and finished his round with another bogey.

"It's just been one of those weeks," he added. "I've not played that badly. I've probably driven it as well as I ever have around here. My iron play hasn't been sharp enough and certainly not my short game."

Donald conceded that his chances of winning the tournament were minimal but he insisted he would continue his efforts.

"It's difficult - at that point you feel like you have lost your ability to contend on Sunday which is the goal at the majors, to have a chance.

"There is nothing worse than waking up on Sunday knowing that whatever you do it is not going to be good enough.

"I will always keep trying my hardest until the very end and [Sunday] will be no different."