The Packers return to practice today and we might be counting off a dozen names as non-particiapants.  The biggest questions center on arguably the team's most important players on both sides of the ball.  Quarterback Aaron Rodgers needs medcical clearance to play again after sufering a concucssion against Washington last week.  Clay Matthews, the league's sack leader and best Green Bay pass rusher, might have to rest his ailing hamstring until later in the week.   The Packers worked out 7 playes on Tueseday, including five linebackers, just in case.  Also given a tryout was Aaron Stecker, who played his high school football just down the street at Ashwauebon.  Stecker spent 11 years in the NFL, most of that time split between Atlanta and New Orleans as a running back and kick returner.