Houston Rockets center Dwight Howard slam dunks during the first half of an NBA basketball game against the Dallas Mavericks, Wednesday, Jan. 29, 2014, in Dallas. (AP Photo/LM Otero)
Houston Rockets' Dwight Howard (12) looks to the basket while San Antonio Spurs' Tim Duncan (21) had a hand on his back during the first half of an NBA basketball game Tuesday, Jan. 28, 2014, in Houston. (AP Photo/Pat Sullivan)
San Antonio Spurs' Tim Duncan (21) knocks the ball away from Houston Rockets' Dwight Howard (12) during the first half of an NBA basketball game Tuesday, Jan. 28, 2014, in Houston. (AP Photo/Pat Sullivan)
Memphis Grizzlies center Marc Gasol (33), of Spain, fouls Houston Rockets center Dwight Howard (12) in the first half of an NBA basketball game, Saturday, Jan. 25, 2014, in Memphis, Tenn. (AP Photo/Lance Murphey)
Memphis Grizzlies' Zach Randolph (50) holds off Houston Rockets' Dwight Howard, right, in the first half of an NBA basketball game Friday, Jan. 24, 2014, in Houston. (AP Photo/Pat Sullivan)
Houston Rockets guard Dwight Howard dunks the ball past Sacramento Kings forward Derrick Williams (13) during the second quarter of an NBA basketball game, Wednesday, Jan. 22, 2014, in Houston. (AP Photo/Patric Schneider)