Avery Bradley out for Game 6

PHILADELPHIA -- Boston Celtics shooting guard Avery Bradley is out for Game 6 of an Eastern Conference semifinal series against the Philadelphia 76ers. Ray Allen remains in his place in the starting lineup.

Celtics coach Doc Rivers said Bradley's status moving forward remains uncertain, noting the dislocated shoulder is a "tough injury."

Avery had said he didn't expect to play in Wednesday's Game 6 due to the shoulder issues that sidelined him from Game 5.

Bradley has dislocated his left shoulder three times during the playoffs, including twice in this series against the 76ers. Celtics coach Doc Rivers said before Monday's Game 5 that both of Bradley's shoulders were now sore and he simply wasn't in position to be on the floor.

Rivers had said Bradley would not participate in Wednesday's shootaround at Wells Fargo Center, but would try to warm up before the game to see if there was enough improvement to get him back to game action. Bradley sounded pessimistic.

"I'm just trying to get [the shoulders] stronger. But as of now, I'm not going to be playing tonight," Bradley said. "It's definitely frustrating, but all I can do is keep trying to get stronger, keep trying to improve for my team. That's what I'm going to do."

Bradley said that he has experienced no improvement in the shoulder since toughing out the end of a Game 4 loss Friday in Philadelphia. He also was noncommittal about the chances of playing in a potential Game 7. Boston leads the series 3-2.

"I'm just taking it day by day," said Bradley, who was working on left shoulder exercises with the training staff as the team prepared to launch into its shootaround.

Allen, who jumped back into the starting lineup in Bradley's place during Game 5, said he's feeling better after rolling his already ailing right ankle in that game. He would be in line to start again for the Celtics.

"It is what it is. He's a go right now," Rivers said.

Allen said these are the types of situations he prepares for during his offseason work, so that his body will stand up when the games matter most.

"I rolled it. It feels good now, though," Allen said. "I don't have any concerns. I was glad I took myself out when I did because I gave it a chance to calm down.

"I believe that I'm a tough person. I believe my body is tough. You go through these things where you're testing it out."