I'm as sure as I can be - and I hope to hell it's true - that the club wouldn't just lie back and watch ANY player rip the piss by feigning injury. So let's accept he was indeed injured.
The contract is another bag of buns. Gallagher himself, and now Alexander, have mentioned "something" in his contract. I've no idea what it was, but anyone who insists there was nothing in there is contradicting both of them.
Apart from the injury 'story', the other conspiracy theory here is that the Record, for some reason I've yet to see explained logically (other than they're a shitrag), printed a downright lie that led to Gallagher being accused of cheating Motherwell, yet the player, his agent, the club - no one, could be arsed denying it.
He's basically a goner now, so thanks, and good luck to him, unless he comes up against us in the future.