DALLAS, TX - MAY 17: Kendrick Perkins #5 of the Oklahoma City Thunder shoots over Dirk Nowitzki #41 of the Dallas Mavericks in the second half in Game One of the Western Conference Finals during the 2011 NBA Playoffs at American Airlines Center on May 17, 2011 in Dallas, Texas. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Tom Pennington/Getty Images)