PHILADELPHIA (AP) _ Houston Rockets forward Charles Barkley went down with an injury to his left leg Wednesday night in the first quarter of his farewell game in Philadelphia.

Barkley was going up to block a shot by Tyrone Hill when he lost his balance and hit the floor hard with 4:09 left in the first. He grabbed his left leg and motioned for trainers to assist him.

Barkley, who says he is retiring after the season, did not put weight on the leg as he was helped off the court and to the locker room. There was no immediate word on the severity of the injury.

Barkley was playing what he says will be his last regular-season game in Philadelphia, where he started his career in 1984.