Pirates manager Clint Hurdle ejected for fourth time this season | pirates.com: News
7.08 Any runner is out when—
(c) He is tagged, when the ball is alive, while off his base. EXCEPTION: A batter-runner cannot be tagged out after overrunning or oversliding first base if he returns immediately to the base;
What do you guys think about this call?...fast forward to 1:15 in video to get a good look.