Green Bay Packers outside linebacker Clay Matthews warms up before an NFL wild card playoff football game against the Minnesota Vikings Saturday, Jan. 5, 2013, in Green Bay, Wis. (AP Ph

 

              Green Bay Packers outside linebacker Clay Matthews warms up before an NFL wild card playoff football game against the Minnesota Vikings Saturday, Jan. 5, 2013, in Green Bay, Wis. (AP Ph
Green Bay Packers outside linebacker Clay Matthews warms up before an NFL wild card playoff football game against the Minnesota Vikings Saturday, Jan. 5, 2013, in Green Bay, Wis. (AP Photo/Jeffrey Phelps)