San Antonio Spurs coach Gregg Popovich, right, yells at official Mike Callahan, left, after Tim Duncan was charged with a foul in the second half of Game 4 of a first-round Western Conference NBA playoff basketball game against the Dallas Mavericks in Dallas, Saturday, April 25, 2009. The Mavericks won 99-90. AP Photo logo AP Photo 7 months ago

San Antonio Spurs coach Gregg Popovich, right, yells at official Mike Callahan, left, after Tim Duncan was charged with a foul in the second half of Game 4 of a first-round Western Conference NBA playoff basketball game against the Dallas Mavericks in Dallas, Saturday, April 25, 2009. The Mavericks won 99-90.