Tiger Woods had an arthroscopic operation on his left knee last week to repair what he described as minor cartilage damage.

The operation was not considered serious, and Woods said on Twitter that he expected to return to the practice.

The operation does not affect Woods' plan to return to the Zozo Championship competition in Japan in October. "I am running now and hope to resume training in the coming weeks," Woods said in the statement. "I look forward to traveling and playing in Japan in October."

Woods will act as captain of the US team in the Presidents Cup in Australia in December. He had previously left the door open to select himself to play in the event.

This is the fifth operation on his left knee – another operation than Woods on his back – dating from 1994 when he was a student at Stanford. His agent at Excel Sports, Mark Steinberg, said the knee irritated him in recent months.

Woods was operated on during the Tour Championship last week. Woods, who won the Masters in April for his 15th major title, did not finish among the top 30 players in the FedEx Cup who qualified for the final event at East Lake Golf Course in Atlanta.