"Steve has been a major part in Lee's rise the last three years."

Lee Westwood not only opened with a 63, he admitted that his initial snub from the Memphis stop was not tied to his UPS sponsorship.

But most impressive is his physical overhaul, and John Huggan profiles the likely U.S. Open favorite with non-clueless bookies in the UK who clearly haven't watched Tiger play in a while.

"The key for Lee is power generation in both the upper and lower body," continues McGregor, who also works with, among others, England's Birmingham City Football Club and the NBA's New York Knicks. "To that end," says McGregor, "he is currently doing a lot of Olympic-type lifting. He is 'power-cleaning' maybe 80 kilos [about 176 pounds], and he is 'power-squatting' maybe twice that much. It's all about replicating the explosive effort Lee wants to make in his golf swing.

"The last half hour or so is spent working on any specific issues he may have," adds McGregor. "Normally, that is his joints. If he has been hitting a lot of balls, his wrists can be sore. So he will do some dumbbell work; bicep curls are things he does a lot, as well as little exercises to help the rotation in his wrists."

That exhausting program is what Westwood has come to know as his "power phase." "The first time Steve put Lee through all of his tests, he said that his maximum point of velocity was occurring some way short of the ball," says Westwood's manager, Andrew (Chubby) Chandler. "Now that maximum occurs right at impact, which has made him longer off the tee. Steve has been a major part in Lee's rise the last three years."