The reason you see more RBs getting injured may be because they carry the ball more than punt returners.
Someone enlighten me about what would make a player better at KO returns than punt returns. Would speed be more preferable at KO since you get a running start and elusiveness better for punts because the cover team is closer?
Montrell was extremely fast and elusive before the ACL. Hopefully he has that burst back. The more weapons the better!