Herschel Walker: From Football to MMA

While some of the NFL's finest take the field on Sunday for Super Bowl XLV, one football legend is making a name for himself -- again -- in yet another new sport.

Former star running back Herschel Walker is 2-0 in his new career as a mixed martial arts fighter, the latest athletic endeavor the 1982 Heisman Trophy winner has mastered since retiring from pro ball more than a decade ago.

In recent years, 48-year-old Walker has become a fifth-degree black belt in taekwondo, competed on the United States' two-man bobsled team in the 1992 Winter Olympics and danced (once) with the Fort Worth Ballet.

In an interview with CBS News, Walker says he took up MMA because he loves it, loves competing and wants to show people that age is no excuse to stop working. "If you dedicate yourself to something, you can achieve it," Walker says. "It's simple, but it's true, and your age is just an excuse. Being in your 40s or your 50s isn't an excuse anymore, not after they see me do it."

During his pro football career, Walker played for the Dallas Cowboys, Minnesota Vikings, Philadelphia Eagles and New York Jets, though he never made it onto a championship team. In a recent interview with ESPN, he says he's considering making a football comeback and that he's in better shape now than he was in his 20s. "I want to be the George Foreman of football, come back and do that one more time."

Speaking of the Super Bowl, here's a terrific, low-fat onion dip recipe that won't leave you couch-bound.