** FILE ** San Antonio Mayor Julian Castro speaks during the Civil Rights Summit at the Lyndon B. Johnson Presidential Library, Tuesday, April 8, 2014, in Austin, Texas. (AP Photo/Statesman.com, Deborah Cannon, Pool)
Memphis Grizzlies' Marc Gasol (33) drives the ball against the San Antonio Spurs' Tim Duncan during the first quarter of an NBA basketball game, Sunday, April 6, 2014, in San Antonio. (AP Photo/Michael Thomas)
San Antonio Spurs' Tony Parker (9) lays the ball up against the Memphis Grizzlies' Courtney Lee (5) and Zach Randolph during the first quarter of an NBA basketball game Sunday, April 6, 2014, in San Antonio. (AP Photo/Michael Thomas)
Memphis Grizzlies' Nick Calathes looks to pass against San Antonio Spurs' Matt Bonner during the second half of an NBA basketball game, Sunday, April 6, 2014, in San Antonio. (AP Photo/Michael Thomas)
San Antonio Spurs' Kawhi Leonard (2) looks to drive the ball against Memphis Grizzlies' Zach Randolph (50) during the first quarter of an NBA basketball game, Sunday, April 6, 2014, in San Antonio. (AP Photo/Michael Thomas)