Phil Mickelson shot a sensational nine-under-par 63 to move to within two shots of leader Craig Lee at the Abu Dhabi Golf Championship.
The five-time major winner hit nine birdies and an eagle on Saturday to put himself firmly in the running ahead of the final round.
Mickelson, who shot 73 and 70 in his opening two rounds, is confident of chasing down Lee on Sunday.
"I love the fact that I'm in contention and I have an opportunity (to win) here in the first week of the year," the American said.
"What I like is that it feels better each day. The first day, I felt terrible.
"The second day, half of it started to come around and today it started to feel pretty good and hopefully I'll be able to build on it again tomorrow (Sunday)."
Like Mickelson, Lee also had two bogeys on his round but five birdies ensured he finished the day 12-under par and two clear of Mickelson and India's Gaganjeet Bhullar.
The Scot will hope to maintain his form into the final round as he chases his maiden European Tour title.
"It's exciting," he said. "The quality of the players behind me is nothing I have been used to before.
"I can't control what they are going to do. I just have to go out and play the best I can."
Rory McIlroy and Pablo Larrazabal share a tied for fourth at nine-under par after rounds of 70 and 68 respectively, and five men are a further shot behind.