Wells was not with the team during their walkthrough on Monday morning and wasn't in the arena before the game, coach Jeff Van Gundy said. Wells left a voice message for Rockets' athletic trainer Keith Jones saying he felt he was disrupting the chemistry of the team, and Van Gundy was unable to get in touch with Wells.

"He's not here tonight. I don't know where he's at. I haven't talked to him," Van Gundy said. "I want to make sure he's safe first."

Wells played 5 minutes in Sunday night's 112-106 win over Sacramento, but asked out of the game, Van Gundy said. He played 23 minutes in the Rockets' loss in Portland on Friday, the first time he was activated in 18 games.

Houston is a half-game behind Utah for fourth place in the Western Conference standings.