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MINNEAPOLIS - OCTOBER 17: Quarterback Brett Favre #4 of the Minnesota Vikings drops back to pass during the fourth quarter against the Dallas Cowboys at Mall of America Field on October 17, 2010 in Minneapolis, Minnesota. The Vikings defeated the Cowboys 24-21. (Photo by Jeff Gross/Getty Images)

MINNEAPOLIS - OCTOBER 17:  Quarterback Brett Favre #4 of the Minnesota Vikings drops back to pass during the fourth quarter against the Dallas Cowboys at Mall of America Field on October 17, 2010 in Minneapolis, Minnesota. The Vikings defeated the Cowboys 24-21.  (Photo by Jeff Gross/Getty Images)