Clippers reserve center Spencer Hawes said he got an MRI exam Saturday on his left knee, which revealed a bone bruise.
Hawes didn't play later that night against Milwaukee and is doubtful for Monday night's game at Staples Center against Detroit.
Hawes said he plans on getting another examination on his knee when he returns to Los Angeles
"I still want to get it read by another set of eyes," Hawes said. "The thoughts I was having when I did it and where I am today puts me in a lot better state of mind."
Hawes was injured at the end of the first quarter during the Clippers' game against Washington on Friday night.
Hawes, who had X-rays taken after the injury happened, said he has been getting treatment to help reduce the swelling.
"I don't know when I'm going to play. I've got to kick this limp first," said Hawes. "It swelled up, but in the right place and not necessarily in the joint line, which is always encouraging. Now it's just treating the swelling."
Rivers interested in Allen
Clippers Coach Doc Rivers said "add me" to the list of teams that are interested in signing free-agent Ray Allen, and as one who has reached out to the 6-5 guard to gauge his interest in playing for the Clippers.
Rivers said he and Allen, who won an NBA championship together with Boston in 2008, talk "all the time" and that it "doesn't have to be about basketball."
Rivers said he doesn't think Allen, 39, is in a rush to sign.
"In two or three weeks, I think he'll start thinking about teams," Rivers said. "I don't think right now he is. I think he wants to wait and see if he wants to play."
Reggie Bullock, who missed five consecutive games with a sprained right ankle, and Chris Douglas-Roberts, who missed 16 consecutive games with a strained right Achilles', were activated for Saturday night's game.