Green Bay Packers coach Mike McCarthy said veteran left tackle Chad Clifton has a "significant" hamstring injury after leaving Sunday night's game against the Atlanta Falcons.
Clifton was bowled over by Falcons defensive end Ray Edwards during the second quarter of Green Bay's 25-14 victory and went down to the turf, clutching his right leg. Clifton had to be helped to the sideline and then was carted to the locker room.
Green Bay already was without right tackle Bryan Bulaga, who missed his second consecutive game with a knee injury. Marshall Newhouse started at right tackle and shifted to left tackle after Clifton was injured, and rookie Derek Sherrod took over at right tackle.
The Associated Press contributed to this report.