Article Photos: OKC Thunder: Kendrick Perkins decided he would cover Dirk Nowitzki 13/49

Oklahoma City's Russell Westbrook (0) shoots as Dallas' Shawn Marion (0) defends during game one of the first round in the NBA playoffs between the Oklahoma City Thunder and the Dallas Mavericks at Chesapeake Energy Arena in Oklahoma City, Saturday, April 28, 2012. Photo by Sarah Phipps, The Oklahoman