"U.S. Open rough is pretty thick," Woods said. "You can do it. You can overdo it, definitely. If you hit a lot of shots out of there ... the wrist is pretty fragile. All he needs to do is just get one little tweak and that's it."
Weathers, a former Green Beret with massive biceps, has PGA Tour credentials as a trainer. His business card describes him as a motivational speaker, flexologist and a master of Shiatsu, a massage therapy similar to acupuncture, using fingers instead of needles. He showed up on the ninth tee and went to work.
"I heard him say that the wrist felt jammed," Palmer said.
Mickelson used his teeth to take the glove off his right hand to putt, and he debated pulling out after nine holes. But he played on, even after pulling his tee shot on the 10th.
"It's a little better," he said to Weathers. "It's bearable."
"What if we have to hit out of the rough?" caddie Jim "Bones" Mackay said to him.
"We're about to find out," he said.
He hit a 210-yard shot from the rough over the back of the green and saved par. But he was done on the 11th. After a hybrid club off the tee, he laid up on the par 5 into a divot. Mickelson had only 100 yards to the hole, but wound up in the bunker.
"The wedge shot on 11 out of the divot jarred it pretty good," he said. "And I just didn't feel like I could hit a shot on 12."
Mickelson said he "half-clubbed it around," taking easy swings to keep the ball in play. But as much as he wants to join an impressive list of winners at the Memorial, he is more concerned with the U.S. Open, where he is a four-time runner-up.
"The U.S. Open is more what we're gearing up for," he said. "As much as I'd like to play here and as excited as I was to play here and get back into the swing of it, I couldn't swing."
Mickelson had planned to play next week in Memphis, and said he would still like to get in another tournament before the U.S. Open if his wrist will allow him to play.
The only other time Mickelson has withdrawn from a tournament was the 2004 Las Vegas Invitational because of food poisoning.
"Bones said he's never been injured and he has a high tolerance for pain," Palmer said. "I was looking forward to it because I'd never played with him. It was fun. But he made the right move. You don't want to risk that with the U.S. Open coming up."