Boston Celtics Paul Pierce (34) loses the ball while being pressured by Cleveland Cavaliers Daniel Gibson during the first half of Game 4 of their NBA Eastern Conference semi-finals basketball series in Cleveland, Ohio, May 12, 2008. (Xinhua/Reuters Photo)

Cleveland Cavaliers LeBron James (23) shoots with his back almost to the basket after getting tangled up with Boston Celtics Ray Allen during the first half of Game 4 of their NBA Eastern Conference semi-final basketball series in Cleveland, Ohio, May 12, 2008. (Xinhua/Reuters Photo)