Detroit Pistons Chauncey Billups (2nd R) goes up for a basket as Boston Celtics Kendrick Perkins tries to block during the fourth quarter of Game 5 of their NBA Eastern Conference Final basketball playoff series in Boston, Massachusetts, May 28, 2008.(Xinhua/Reuters Photo)

Boston Celtics Paul Pierce reaches for a loose ball in front of Detroit Pistons Tayshaun Prince during third quarter of Game 5 of their NBA Eastern Conference Final basketball playoff series in Boston, Massachusetts May 28, 2008. (Xinhua/Reuters Photo)