Nick Watney capitalises on KJ Choi's blunder at AT&T National

Nick Watney claimed a two-stroke victory at the AT&T National in Pennsylvania last night as KJ Choi's challenge stumbled in the closing holes.

Watney had entered the final round in a share of the lead with Rickie Fowler after posting a course record eight-under-par 62 on Saturday, but he could not shake off the attentions of Korean Choi.

The pair were level at 12 under par playing the par-four 15th, but Choi found the rough of the tee, hit a bunker with his second shot and fired his third through the back of the green and could not get down in fewer than six shots. "That was a key hole, and I missed it. So I think that was the turning point of the match," admitted Choi afterwards.

Choi hit back by getting a birdie on the 16th, but that feat was matched by Watney who parred the final two holes to secure a second victory of the season.

It was a nightmare day for Ryder Cup star Fowler as the 22-year-old failed to recover from a double bogey at the second, eventually carding a four-over par 74 to end the tournament in a tie for 13th at five under.

Australia's Robert Allenby had at one point looked set to haul himself into contention for the victory when his ace at the par-three 14th moved him to nine under overall, just two shots behind Watney at that time.

But a bogey at the 15th sapped the momentum from his challenge as he finished in an eventual tie for sixth with Chris Stroud. England's Justin Rose was the top European contender in a tie for 15th – alongside Americans Spencer Levin, John Merrick, Joe Ogilvie and Kevin Streelman – at four under par but compatriot Brian Davis ended on three over par after a closing 72.