
And his resurgence has given the former world No 1 fresh hope that he can contend at Oak Hill over the weekend.
"I was letting the round get away from me somewhat, but making four birdies on the last eight holes was nice to sort of redeem the round a little bit and keep myself in the tournament," he said.
"Walking up the second hole, which was my 11th hole today, all I wanted to do is be here for the weekend. All of sudden, I'm somewhat back in the tournament. I get off to a fast start tomorrow and I'm right there.
"It makes me feel good because maybe in the middle of the season or a couple of months ago I wouldn't have been standing up here. I would have been going home.
"It's good to be able to do that and fight back and makes you feel good about yourself going into the weekend."

Lee Westwood said he was still in with a chance to win the US PGA despite a disappointing end to his second round.

Luke Donald and Lee Westwood's hopes of winning a first major title again came up short in Atlanta on Sunday.

Tiger Woods shot a magnificent seven-under-par 63 to move two clear in the 89th USPGA Championship.

Jim Furyk must overcome his demise at the 2012 Bridgestone to win the US PGA, says Paul McGinley.

Take a look at the best pictures from the third day's play at the US PGA Championship at Oak Hill.

Highlights of the third round of the US PGA Championship, the year's final Major, at Oak Hill CC.