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Durant powers Thunder past Spurs 109-103

Oklahoma City Thunder center Kendrick Perkins (5) dunks in front of San Antonio Spurs' Tim Duncan (21), Boris Diaw (33), and Kawhi Leonard (2) during the first half of Game 4 in the NBA basketball playoffs Western Conference finals, Saturday, June 2, 2012, in Oklahoma City. (AP Photo/Eric Gay)

NBA playoffs: Spurs vs. Thunders in Game 4 West finals

The San Antonio Spurs take on the Oklahoma City Thunders in Game Four of the Western Conference Finals of the 2012 NBA Playoffs at Chesapeake Energy Arena on June 2, 2012 in Oklahoma City, Oklahoma.