Isak suffered an eye injury in Sunday's 2-1 win over Wolverhampton and was forced to be subbed off during halftime, Scott Wilson of The Northern Echo reports. "It was his eye, but I'm not 100 per cent sure what the issue was. I just knew he had to come off. We'll find out more afterwards. I don't know whether it's serious or not, but we absolutely hope not. He's such an important player for us," Howe said.