Wigan manager Roberto Martinez is sweating over the fitness of striker Franco Di Santo after he was stretchered off on Saturday.
Di Santo was forced off in the goalless draw with Birmingham following a poor challenge from Craig Gardner, for which the Blues midfielder received a red card.
Martinez will now wait to learn the extent of Di Santo’s injury, and fears the striker may have suffered ankle ligament damage.
He said: “(Franco) has a couple of nasty cuts in his leg and by that you can see the challenge was really high.
“The referee had a clear view and was on top of the incident and my worry is the extent of the injury.
“The cut swelled up straight away and there could be a bit of ligament damage in his ankle, which is a worry.
“From where I was, Gardner’s leading foot was really high and he gets the ball with the second foot. Nowadays you can’t go into a challenge like that with your feet high.
“It was a reckless challenge with excessive force and it was a red card, but all I’m worried about is Franco’s injury.”