Tiger Woods is no longer using crutches, a walking boot or a razor. He hasn't hit a full golf shot in 47 days and has no idea when he will practice, much less play in another tournament.

All he could say with certainty on Tuesday was that he would not return until he was fully healthy.

"Usually I set a timetable when I want to come back and play when I've had injuries before," Woods said at the AT&T National, which benefits his foundation. "This one is different. I'm going to learn my lesson from what I did at The Players and apply it this time and come back when I'm 100 percent. I don't know when that's going to be.

"That's kind of the frustrating thing about it right now is I don't know."

While he did not rule out the British Open, which starts on July 14 at Royal St. George's, he made it sound as though he would miss another major championship.

"I wouldn't go over there just to show up," he said. "I'd go over there to win the golf tournament, so I need to obviously get my body ready so I can practice, and eventually play."

Woods has gone through four knee surgeries since his freshman year at Stanford. He tore knee ligaments while jogging in the summer of 2007, and finished the year winning five of six tournaments, including a major. He won the US Open in 2008 for his 14th major on one good leg. And after injuring his right Achilles in December 2008, he won seven times the next season.