Herschel Walker thinks he can still play

The Minnesota Vikings had a 41-year-old quarterback last season.

Would they like a 48-year-old running back in 2011?

That's the question posed Monday by once-and-perhaps-future Vikings running back Herschel Walker, who now competes as a mixed martial artist. On a promotional conference call this week, Walker said he has toyed with playing up to the age of 50, and that the Vikings or his hometown Atlanta Falcons would be his preferred landing spot.

Walker via Franklin McNeil of ESPN.com: "I'm a much better-conditioned athlete now than when I was playing football. I'm 48 and in better shape now than I was when I was in my early 20s, playing football."

If anyone could pull a George Foreman-like comeback in the NFL, it would be Walker. But I'm going to go out on a limb and say the Vikings aren't likely to be interested in that sideshow after a year as tumultuous as the one they just endured.

Plus, I hear Jimmy Johnson wants one final cut of that action.