Saw Carvin Johnson and Richard Ash walking along South U. yesterday (heading east; right in front of the president's house).
Ash was easily identifiable (was wearing a #54 shirt). Carvin was a bit more difficult; face looked exactly like him, and his general build matched.
Anyway, the point of this post was in the subject line: Carvin was in a full leg brace, and was on crutches. I don't think this is cause for great concern or anything - as a precautionary measure it matches with what we know of his injury.
Still, I thought I'd pass it along.