“I can play in the NFL today," he told USA Today. "I couldn’t take every snap. But running backs nowadays don’t play every down. Now they send in the choir section."
“Physically, I can still do it," he added.
Walker played for the Dallas Cowboys before being traded to the Minnesota Vikings in 1989. He started his football career as the star running back for the USFL's New Jersey Generals and won the Heisman Trophy in 1982.