Elliott is OSU's leading returning back, having accumulated 262 yards and two touchdowns on 30 carries last year. He began fall camp as the No. 1 back after the graduation of Carlos Hyde.
His injury was first reported by Cleveland.com's Ari Wasserman.
Other Buckeyes limited at practice today included starting quarterback Braxton Miller, who continues to have his throw count monitored by the staff after offseason shoulder surgery, and wideout Devin Smith, who caught passes off to the side with Miller.
Another running back, sophomore Warren Ball, still did not take part in drills when the media was present but no longer had the boot on his injured right foot/ankle. Others who were held out of drills were defensive lineman Michael Hill, linebacker Trey Johnson and cornerback Marshon Lattimore.