Yao topped the game with 25 points and 10 rebounds but still said he had problems with the Spurs' defense in Rockets' 88-81 defeat.

The Rockets played without Tracy McGrady, who could miss five weeks with a back injury.

Alston scored 15. Luther Head added 13, and Keith Bogans had 11 for the Rockets.

The loss kept Houston winless in 10 games against Southwest Division rivals.