The Tigers announced a series of roster moves Wednesday, placing catcher Grayson Greiner on the 10-day IL with a strained left hamstring, selecting the contract of catcher Eric Haase in his place and placing right-hander Franklin Perez on unconditional release waivers.

The Perez move comes just one day after the Tigers announced that he’s in for a lengthy absence due to surgery on his continually problematic right shoulder. It sounds callous, but teams aren’t able to place injured players on outright waivers, so the only means of removing Perez from the 40-man were to release him or call him up to place him on the Major League 60-day IL, where he’d accrue MLB service time and a big league salary. While another club could claim Perez, or he could sign elsewhere in the likely event that he clears, it’s also fairly common to see players in these circumstances quickly re-sign on minor league deals.