Pistons guard Rodney Stuckey is in stable condition after a scary incident during a timeout on Friday night.
He complained of dizziness and collapsed in the third quarter of Detroit's loss to Cleveland.
Television replays showed Stuckey shaking in what may have been a seizure, but nothing has been confirmed.
A Pistons spokesman said Stuckey was conscious, his vital signs were stable, and he was breathing on his own at the Cleveland Clinic.
Stuckey suffered a similar incident back in November 2008 when he suffered a major dizzy spell during halftime against the Celtics. He didn't return and missed two games with the condition.
"Our thoughts were with him," said Jonas Jerebko. "It's never fun when a teammate goes down like that. I've never seen it before.
"My mind came out of the game, of course. I don't know if it changed the outcome but, of course, my thoughts were with him."