The Packers have placed 24-year old, undrafted rookie running back Quinn Porter on the Injured Reserve List with a sprained MCL.  Porter played in the Packers first three pre-season games and he looked pretty decent.  He carried the ball 21 times for 77 yards (3.7 ypc) and he also caught 1 pass for 6 yards.  Porter looks like he can handle the big jump in competition as he played at tiny Stillman College (Alabama).