Warriors center Andris Biedrins returned to the court on Sunday, but left after aggravating his lingering back injury.

He played 21 minutes before leaving the game in the third quarter.

"He's not doing very well," coach Don Nelson said. "I probably shouldn't have even played him, but we wanted to have another big guy if we possibly could. He couldn't do very much when he was out there, and he has injured himself again. So that was a bad decision on my part."

Biedrins sat out Friday's loss to the Clippers after tweaking his back in Wednesday's win over the Grizzlies.