Yeah I would guess the injury came from that. Perhaps whiplash if it's a concussion.He had just been crunched by - I think - Stringer (of all people) who crunched him from behind. With some venom, but a fair tackle. Took a while to get up after that which is unusual for Libba. The replay of the tackle didn't suggest a head knock, more likely to the side or the ribs. Hope there's no internal damage.