Interesting to see whether Martinez is playing games here, in terms of the run of events, Mirallas went down and it looked bad, then Ross (the stadium announcer) tweeted that he was up and walking around, then Martinez in his post game interview said it was a bad one and that it was a real negative on the night, then Mirallas was quoted as saying he was hoping to be fine for Saturday and then finally Martinez said it will be another 2 or 3 days until we find out the damage.
I hope its just mind games, simply because of all the players that play for us, when you take Mirallas out of the team we are always much less effective, his stats per minute played this season must be stunning