Gipson-Long was diagnosed with a left groin strain after undergoing an MRI last week, Chris McCosky of The Detroit News reports.
Gipson-Long sustained the injury in a bullpen session last week during the first week of spring training. The 26-year-old is completing daily rehab activities, but the Tigers have yet to offer a timeline for when the right-hander might be ready to make his Grapefruit League debut. Gipson-Long entered camp on the outside looking in for a spot in the Detroit rotation, and the groin injury won't help his case for making the Tigers' Opening Day roster.