The Detroit Tigers made a bit of a surprise move on Monday when they called up outfielder Mike Gerber. Not only did they designate reliever Drew VerHagen for assignment in the process, they also passed over more experienced players like Mikie Mahtook and Jim Adduci, both of whom had productive years for the Tigers in 2017. Mahtook has struggled at the plate since being sent to Toledo on April 12, but Gerber was in a rough patch of his own when he was originally called up last Friday.