Alan Pardew: "We debated when he got this injury how serious it was with the medical staff and the answer is that we don't know.
"He will definitely miss West Ham and I think he'll definitely miss Stevenage (next Saturday), but talking to the boy, he thinks he is ready for Sunderland already.
"I've got to make a call on that game as to whether he is putting himself at risk and we'll have to see, but it's touch-and-go."