He will be assisted by D Cann and M McDonough with L Probert announced as the fourth official.Mike Dean, of course, controversially sent off Blades defender Matt Kilgallon in October's Steel City Derby at Hillsborough. Kevin Blackwell hasn't welcomed the appointment and is angry with the Football Association for naming Dean as the man in the middle for such a big occasion.
Click here to read what Blackie has to say about the appointment.