From Chris McCosky's "blog" in the Detroit News (via PF):
When we were let into practice Thursday at the Pan Pacific Rec Center, the first thing we saw was Richard Hamilton sitting dejectedly with a huge wrap around his right elbow and arm. He was also bleeding from a scratch on the top of his right hand. The initial word from the Pistons trainers was that he had hyperextended the right elbow. He did it during the team's scrimmage and it was clear he was in a lot of pain. They are listing him as questionable for the game against the Lakers. It didn't look too good today, but Hamilton is a fast healer. So, best not to draw any conclusions until Friday morning.
Flip Murray would probably start at shooting guard if Rip can't go.