Houston Rockets' Tracy McGrady dunks the ball over Los Angeles Lakers' Luke Walton during the first half of a basketball game in Los Angeles on Tuesday, Oct. 30, 2007. (AP Photo/Matt Sayles)
Rockets star Tracy McGrady says he will undergo microfracture surgery on his left knee and will miss the remainder of the season.
McGrady had surgery on the same knee last year.
The seven-time All-Star missed much of January trying to get the knee back in shape and had an MRI last week to try to discover why it was still bothering him.
McGrady is third on the Rockets in scoring, averaging 15.6 points per game.