Simpson, who is from Salford, admits to still being a United fan but insists it will be strictly professional on Saturday.
“I can’t wait. It’s the first time I’ve been back in three-and-a-half years but I am not just going there for a day out with my family, I am looking to take points and close the gap,” he said. “I think I’ll always have something to prove to Sir Alex Ferguson. I was there from the age of 11 but I had a good time and I’m a Red at heart. But I’m at a good team, playing well and at the back of my mind is maybe showing him and proving a point and hopefully taking some points.”