LOS ANGELES, CA - MAY 02: Dirk Nowitzki #41 of the Dallas Mavericks reacts in the fourth quarter while taking on the Los Angeles Lakers in Game One of the Western Conference Semifinals in the 2011 NBA Playoffs at Staples Center on May 2, 2011 in Los Angeles, California. 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 Harry How/Getty Images)