According to Town boss Joe Royle, who broke the news to the Official Club Website: "Pablo's picked up a problem this morning in training.
"Late on in the session he pulled up sharp after a shot and had a problem, he's got a very sore groin. We can't say too much at the moment and it's just a case of seeing how he is tomorrow.
"That is the only worry at this moment otherwise it's the same 18 to choose from. If Pablo doesn't make it, either Jimmy Juan or Dean McDonald will take his place on the bench."