Tiger Woods has undergone reconstructive surgery on his left knee in Utah to repair a torn ligament, and doctors say it's "highly unlikely" there will be any long-term effects.

It's the second time in 10 weeks Woods had surgery on his knee, this time on his anterior cruciate ligament.

"We were confident going into this surgery, and I am pleased with the results," Dr. Thomas D. Rosenberg said today in a statement released by IMG, Woods' management company.

"There were no surprises during the procedure, and as we have said, with the proper rehabilitation and training, it is highly unlikely that Mr. Woods will have any long-term effects as it relates to his career."

The world's No. 1 player announced last week that he would miss the rest of the season, which includes two more major championships and the Ryder Cup.

"It was important to me to have the surgery as soon as possible so that I could begin the rehabilitation process," Woods said in a statement. "I am very appreciative of Dr. Rosenberg and Dr. Cooley and his staff's guidance and look forward to working with them through the necessary rehabilitation and training.

"I look forward to working hard at my rehabilitation over the coming months and returning to the PGA Tour healthy next year."

He did not say when he would start his rehab or any timetable for his return.