Orlando Magic center Dwight Howard (12) and Boston Celtics center Kendrick Perkins (43) try to get position under the basket for a rebound during the first half of...

...MAY 10: Dwight Howard #12 of the Orlando Magic takes the ball to the basket against Kendrick Perkins #43 of the Boston Celtics in Game Four of the Eastern Conference Semifinals during the 2009...

...Orlando Magic, Game 4 ORLANDO - MAY 10: Dwight Howard #12 of the Orlando Magic rebounds against Kendrick Perkins #43 of the Boston Celtics in Game Four of the Eastern Conference Semifinals during the 2009...

Orlando Magic center Dwight Howard (12) goes to the basket against Boston Celtics center Kendrick Perkins (43) in the first quarter of Game 5 of the NBA basketball Eastern Conference semifinal playoff...

Boston Celtics center Kendrick Perkins (43) tips the ball in for a score over Orlando Magic center Dwight Howard (12) as...

ORLANDO - MAY 8: Dwight Howard #12 of the Orlando Magic rebounds against Kendrick Perkins #43 of the Boston Celtics in Game Three of the Eastern Conference Semifinals during the 2009...

ORLANDO, FL - MAY 08: Dwight Howard #12 of the Orlando Magic shoots over Kendrick Perkins #43 of the Boston Celtics in Game Three of the Eastern Conference Semifinals during the 2009...

...the Eastern Conference semifinal basketball playoff series in Boston, on Monday, May 4, 2009. Celtics center Kendrick Perkins looks on at left. (AP Photo/Elise Amendola) 2-Houston Rockets' Yao Ming, of China, right...

BOSTON - MAY 04: Kendrick Perkins #43 of the Boston Celtics shoots over Dwight Howard #12 of the Orlando Magic in Game...