“When I first started, I really was not a football player. I never really even liked football then,” Walker told MMA Fighting. “I just loved to run. If it would have been around then, I really think I would have been an MMA fighter.”

At 47 years old, Walker is finally following his calling. He makes his debut on Jan. 30, facing little-known Greg Nagy at a Strikeforce show in Sunrise, Fla.
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