Article Photos: OKC Thunder: Kendrick Perkins decided he would cover Dirk Nowitzki 5/49

Oklahoma City's Serge Ibaka (9) blocks the shot of Dallas' Ian Mahinmi (28) 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 Nate Billings, The Oklahoman