Article Photos: OKC Thunder Game 4 report card: Kendrick Perkins' offense gets an 'A' 9/45

San Antonio's Tim Duncan (21) shoots against Oklahoma City's Kendrick Perkins (5) during Game 4 of the Western Conference Finals between the Oklahoma City Thunder and the San Antonio Spurs in the NBA playoffs at the Chesapeake Energy Arena in Oklahoma City, Saturday, June 2, 2012.  Photo by Nate Billings, The Oklahoman