Article Photos: OKC Thunder: Kendrick Perkins and Dirk Nowitzki exchange 'pleasantries' 51/51

Dallas' Dirk Nowitzki (41) takes a shot in front of Shawn Marion (0) and Oklahoma City's Kevin Durant (35) during Game 2 of the first round in the NBA basketball  playoffs between the Oklahoma City Thunder and the Dallas Mavericks at Chesapeake Energy Arena in Oklahoma City, Monday, April 30, 2012.  Oklahoma City won, 102-99. Photo by Nate Billings, The Oklahoman