Tiger Woods has announced he has undergone surgery on his left knee to repair cartilage damage.

Woods had the operation last week, shortly after he finished tied for 37th place in the final round of the BMW Championship in Medinah, Illinois.

"I expect Tiger to make a full recovery," said Dr Vern Cooley, who performed the surgery. "We did what was needed, and also examined the entire knee. There were no additional problems."

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