San Antonio Spurs center Tim Duncan (21) shoots as Oklahoma City Thunder center Kendrick Perkins defends 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)
San Antonio Spurs center Tim Duncan (21) shoots as Oklahoma City Thunder center Kendrick Perkins defends 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)