First-base umpire Brian O'Nora called Escobar safe, but Gibbons immediately came out to challenge. Replays showed that the ball was in first baseman Adam Lind's glove a half-step before Escobar arrived at the base.
The call was overturned following after the 40-second review.
Gregor Chisholm is a reporter for MLB.com. Read his blog, North of the Border, and follow him on Twitter @gregorMLB. This story was not subject to the approval of Major League Baseball or its clubs.