San Antonio Spurs power forward Tim Duncan (21) blocks a shot to the basket by Miami Heat shooting guard Ray Allen (34) during the second half of Game 6 in the NBA Finals basketball game, Tuesday, June 18, 2013 in Miami. The Heat defeated the Spurs 103-100. (AP Photo/Kevin C. Cox, Pool)
San Antonio Spurs power forward Tim Duncan (21) blocks a shot to the basket by Miami Heat shooting guard Ray Allen (34) during the second half of Game 6 in the NBA Finals basketball game, Tuesday, June 18, 2013 in Miami. The Heat defeated the Spurs 103-100. (AP Photo/Kevin C. Cox, Pool)