HOUSTON -- Astros manager Bo Porter is getting pretty decent at this whole replay thing.
In the top of the second inning of Saturday's game against the A's, Porter successfully challenged a second-inning safe call on a bang-bang play with Houston pitcher Dallas Keuchel covering the first-base bag and appearing to beat out Oakland's Coco Crisp.
Porter came out to discuss the call with first-base umpire Paul Emmel, eventually issuing an official challenge on the call.
After two minutes and 37 seconds, the call was overturned, as Keuchel's foot was deemed to have touched the bag before Crisp. The out ended the inning with Oakland then up, 2-1.
Porter is 3-for-4 on challenges in the first year of MLB's expanded replay system.
Chris Abshire is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.