Rookie center/guard JC Tretter was activated from the Green Bay Packers' reserve/physically unable to perform list on Tuesday, and wide receiver Myles White was placed on injured reserve.
Tretter was a fourth-round draft choice who sustained a broken ankle during OTAs in May.
White appeared in seven games this season and caught nine passes for 66 yards.
It wasn't immediately known what injury forced White onto IR. He was not listed on the team's injury report last week, and there was no mention of any injury after Sunday's game against the Atlanta Falcons.