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San Antonio Spurs' Tim Duncan (21) chases a loose ball during the first half of Game 7 of the opening-round NBA basketball playoff series against the Dallas Mavericks, Sunday, May 4, 2014, in San Antonio

San Antonio Spurs' Tim Duncan (21) chases a loose ball during the first half of Game 7 of the opening-round NBA basketball playoff series against the Dallas Mavericks, Sunday, May 4, 2014, in San Antonio. (AP Photo/Eric Gay)