We all know the Herschel Walker is a freak of nature physically. There are fables of his training regime being 3,500 push-ups and sit-ups every day, even at 53 years old. Walker, now 54, apparently still has the competitive itch inside him as he wants to once again step into the octagon and take a swing at mixed martial arts.

"I told people guys I can fight again. I don't know why people think I can't," Walker said in an interview with TMZ Sports. "I'm a little different. I'm not like everyone else. There's not a doubt in my mind I could fight again and I would love to do it."

Walker gave this a go before as a part of Strikeforce, posting a 2-0 record with both wins coming via TKO, but hasn't fought since 2011. Now, helping to promote Bellator's latest fight card, Walker thinks he would be able to stand in the ring with a legitimate opponent.

"I want it to be a worthy opponent. I don't want it to be someone they hand pick - some bum that they found on the street that was fighting fifteen years ago. I don't want it to be someone like that. I want it to be someone that will keep the integrity of this sport."

Walker played in the NFL for 11 seasons and was a two-time Pro Bowler. He was also a Heisman Trophy winner and National Champion during his time at the University of Georgia. He wants to get a fight deal done before the end of this year.

"Scott Coker is a good friend of mine and when Scott gets ready he will give me a deal. And I told him I want to do something by the end of the year. If I can't get a fight by the end of the year, I'd rather be an ambassador and start promoting the sport a little bit rather than keeping my name out there and wanting to fight."

Wink of the CBS' eye to MMAFighting.com

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Herschel Walker wants another shot at Mixed Martial Arts. Getty Images