Cisnero (shoulder) will begin his rehab assignment with Triple-A Toledo on Thursday, Jason Beck of MLB.com reports.
Cisnero has yet to pitch this season while nursing a right shoulder strain, but he's nearing a return to the big leagues. He'll likely make multiple appearances with Toledo before being activated off the 60-day injured list, leaving open the possibility he returns at some point next week. Cisnero will provide the Tigers with another veteran bullpen piece, having produced a 3.65 ERA and 1.33 WHIP with 62 strikeouts over 61.2 innings in 67 appearances in 2021.