Tigers recalled LHP Ian Krol from Triple-A Toledo.
Tigers optioned LHP Ian Krol to Triple-A Toledo.
Ian Krol will be called up on Friday.
Ian Krol (forerm) will return to Grapefruit League action on Saturday.
Ian Krol didn't pitch Wednesday due to left forearm tightness.
Tigers activated LHP Ian Krol from the 15-day disabled list.
Ian Krol (shoulder) is scheduled to begin a rehab assignment Friday with Low-A West Michigan.