Article Photos: Both Thunder and Mavericks showed their age in Game 4 17/67

Oklahoma City's Kevin Durant (35) is defended by Dirk Nowitzki (41) and Shawn Marion (0) of Dallas  during game 4 of the Western Conference Finals in the NBA basketball playoffs between the Dallas Mavericks and the Oklahoma City Thunder at the Oklahoma City Arena in downtown Oklahoma City, Monday, May 23, 2011. Photo by John Clanton, The Oklahoman