The Packers have lost starting left guard Josh Sitton for at least three games due to a sprained knee.  The Packers will likely have Junius Coston replace Sitton in the starting lineup.  He is a center by trade but he should be able to handle playing guard.  He played in 13 games (7 starts) for the Packers last season and he’s a big boy at 6’3″, 313 pounds.  The Packers probably won’t see that big of a dropoff with Coston starting instead of Sitton.