Georgia running back Sony Michel suffered a broken left forearm on Sunday and underwent surgery on Monday to repair the fracture, per the school.
The school stated in a release that Michel sustained the injury in "an accident," but did not offer details about the nature of the accident. The Atlanta Journal-Constitution reported people with knowledge of the situation said he suffered the broken forearm while riding an all-terrain vehicle.
Georgia did not offer a timeline for Michel's recovery.
Michel, a junior, led the Bulldogs in rushing last season, gaining 1,161 yards on 219 carries (5.3 average). He also was third on the team with 26 catches for 270 yards (10.4 average).
Michel replaced Nick Chubb as UGA's starter last season after Chubb suffered a season-ending knee injury in October. Chubb, who's considered one of the top RB talents in college football, has not yet been cleared to return from the injury.
It all adds up to a big question mark for the Bulldogs' backfield with about a month to go before the start of fall camp. Georgia's season opener is Sept. 3 against North Carolina.