Watch: Geraldo Perdomo & Mookie Betts Share Untold Big League Stories, Test Umpire Skills | On Base, Ep. 42

Diamondbacks' star shortstop Geraldo Perdomo joins Mookie to talk about the art of turning a double play, tips at playing SS, their reaction to Kyle Schwarber's 4-HR game and whether Mookie swings for the fences when he gets to 3 HRs in one game. They also share stories from early in their career where Mookie explains why he wanted to be sent down after joining the 2014 Red Sox and Perdomo's rivalry with Madison Bumgarner. Finally, the two MLB stars test their umpire skills with a friendly competition of calling balls and strikes. Watch new episode of On Base with Mookie Betts. @geico