Herschel Walker, the 1982 Heisman Trophy winner, will make his MMA debut against Greg Nagy.  The 47-year-old two-time Pro Bowler will compete in the cage the night before the Pro Bowl and one week prior to the Super Bowl.  The 6-foot 1-inch, 220 pound Walker holds a fifth degree black belt in Tae Kwon Do and has experience... Read more »