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We’re still several days away from the first full weekend of preseason action, and yet another player is done for the duration.

Per a league source, Packers left tackle Bryan Bulaga has indeed suffered a torn ACL in his knee.

The injury happened during Saturday night’s intra-squad scrimmage. Bulaga didn’t miss a rep, but he complained about a problem with the knee after the practice.

Bob McGinn of the Milwaukee Journal Sentinel first reported that Bulaga has a knee injury, and that the team feared it could end his season.

A first-round pick in 2010, Bulaga was moved from right tackle to left tackle during the offseason as the Packers try to improve an offensive line that allowed 51 sacks of quarterback Aaron Rodgers in 2012.