Shaq O'Neal might not travel with Celtics

BOSTON -- Boston Celtics center Shaquille O'Neal missed his third straight game Friday night against the Chicago Bulls with a right knee bruise.

Celtics coach Doc Rivers said before the game that O'Neal is also questionable to travel with the team on the upcoming four-game road trip that begins Sunday at Oklahoma City.

"I don't know if it's looking good, to be honest, but I don't know," Rivers said of O'Neal. "We'll see. I don't even know right now if we'll bring him on this road trip, let alone if he's going to play."

The Celtics are also without Avery Bradley (ankle) and Kendrick Perkins (knee), who remain sidelined.

Chris Forsberg covers the Celtics for ESPNBoston.com.