Chafin (groin) will make a rehab appearance for Low-A Lakeland on Thursday, Jason Beck of MLB.com reports.
Chafin missed the start of the season with a groin strain, but he's making progress and closing in on a return. If his outing Thursday goes well, he'll move up to Triple-A Toledo for two more rehab appearances. That puts his potential return date sometime in the middle of next week.