ST. LOUIS, MO - SEPTEMBER 7: Matt Cassel #16 of the Minnesota Vikings warms up prior to a game against the St. Louis Rams at the Edward Jones Dome on September 7, 2014 in St. Louis, Missouri. (Photo by Michael B. Thomas/Getty Images)
ST. LOUIS, MO - SEPTEMBER 7: Matt Cassel #16 of the Minnesota Vikings warms up prior to a game against the St. Louis Rams at the Edward Jones Dome on September 7, 2014 in St. Louis, Missouri. (Photo by Michael B. Thomas/Getty Images)