Did he get injured after the arsenal game? Because the run he did on the right flank before putting in the pass for Naismith suggested that he wasn't impeded in any way.
His lack of fitness for me is mainly a cardiovascular issue, rather than an injury. He may be playing with some discomfort but as I said, in the Arsenal game he was able to run freely when he needed to.
Injured in the build up to that Arsenal game mate and pretty sure he had an injection. Had a toe injury. Hobbled off that game as he took his boot off immediately when going off. In fact it all went to [Poor language removed] when he did go off as he kept them pegged back and worried on the break.