"Now, it is clear that the right thing to do is to listen to my doctors, follow through with this surgery and focus my attention on rehabilitating my knee," Mr. Woods said on his Web site.
He sure wasn't listening to doctors by playing the U.S. Open, a victory that now looks even more impressive.
Out of competition for two months because of April 15 surgery to clean out cartilage in his left knee, he suffered a double stress fracture in his left tibia two weeks before the U.S. Open.
Hank Haney, his swing coach, was with him in Florida when doctors told Mr. Woods the preferred treatment is three weeks on crutches, followed by three weeks of rest.
According to Mr. Haney, Mr. Woods' reply was: "I'm playing the U.S. Open, and I'm going to win."
"And then he started putting on his shoes," Mr. Haney recalled. "He looked at me and said, 'Come on, Hank. We'll just putt today.' Every night, I kept thinking there was no chance he's going to play. He had to stop in his tracks for 30 seconds walking from the dining room table to the refrigerator.
"He was not going to miss the U.S. Open at Torrey Pines. There just wasn't any discussion."
Mr. Woods, 32, did not say when he would have surgery. Mr. Haney said the typical recovery is six to eight months.
"There will be debate whether he rushed back for the U.S. Open," said Mark Steinberg, his agent at IMG. "But I don't think there will be any debate that he rushes back from his next surgery. He won't need to. Augusta is in April. And if things go according to plan, he'll be able to play an event or two or three."