INDIANAPOLIS -- Trent Richardson will not participate in on-field drills at this week's NFL Scouting Combine because of a minor knee injury, a league source said Wednesday.
Brooks: RB prospect rankings
TrentĀ Richardson isn't the only talented running back in the 2012 NFL Draft. Bucky Brooks ranks his top five
at the position. **More ...**
Richardson, the former Alabama star who's considered the top running back available in this year's NFL draft, suffered a minor injury in a practice leading up to last month's BCS national championship game, the source said, and had a "minor scope" about three weeks ago to alleviate his discomfort.
Richardson has made good progress since then, but as a precaution, he'll limit his activity at the combine. He's expected to be able to participate in all on-field testing at Alabama's March 7 pro day.
Follow Jason La Canfora on Twitter @JasonLaCanfora