Think he got a yellow and you can't change that after the fact. Guess he could be charged with violent conduct or something, but seems unlikely.
Depends what he got the Yellow for... I think he got the yellow for grabbing him on the back of the head before the kick (as that would be yellow worthy). Doesn't make sense to me that the ref see's that kick and doesn't give him a ref... but then refs are shit.
If the ref totally missed the kick then it could be actioned.