Article Photos: Dirk Nowitzki replaces Ron Artest as public enemy No. 1 in Thunderland 37/51

Oklahoma City's Nick Collison (4) defends against Dallas' Brendan Haywood (33) 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. Photo by Sarah Phipps, The Oklahoman