Article Photos: Dirk Nowitzki replaces Ron Artest as public enemy No. 1 in Thunderland 2/51

Oklahoma City's James Harden signs autographs before Game 2 of the first round in the NBA playoffs between the Oklahoma City Thunder and the Dallas Mavericks at Chesapeake Energy Arena in Oklahoma City, Monday, April 30, 2012. Photo by Nate Billings, The Oklahoman