Ray Allen (ankle) is practicing on Friday but remains a game-time decision for Game 3 against the Hawks. Allen hasn't played since April 10, but he went through a full 75 minute practice session on Thursday and was "optimistic" about his chances of playing in Game 3. His return would be a big boost for the Celtics as the team could really use his ability to hit the three-point shot. Mickael Pietrus will serve as the sixth man once again if Allen is unable to play.