The Green Bay Packers are fearful that starting left tackle Bryan Bulaga may be lost for the season with a torn ACL, according to the Milwaukee Journal Sentinel.
Bulaga was injured at some point during the Packers' intra-squad scrimmage on Saturday. The Iowa product finished the practice, but later received treatment in the locker room.
The 24-year-old Bulaga missed the final nine games last season due to a fracture in his left hip.
Marshall Newhouse, who started all 16 games at left tackle last year and 13 in 2011 for Green Bay, is expected to move back from right tackle to left.