The Chargers signed Shelby (groin) to a reserve/future contract Monday, Aaron Wilson of KPRC 2 Houston reports.
Shelby spent the preseason with the Chargers before reverting to IR with a groin injury in August. The undrafted rookie was then waived from this list with an injury settlement Aug. 31, and he'll now get another chance to earn a new roster spot heading into the 2023 campaign.