City's Sky Bet League One fixture with Oxford United this Tuesday (12 September 2017) will be officiated by Christopher Sarginson.
Mr Sarginson has taken charge of 7 games so far this season, his most recent coming at the weekend in Rotherham United's 3-2 home win over Bury.
He was in the middle for 41 games last season, including City's 1-0 win over Northampton Town at the Northern Commercials Stadium last November.
The assistant referees at Oxford's Kassam Stadium on Tuesday night will be Ravel Cheosiaua and Justin Amey.
The fourth official at Grenoble Road will be Joe Clark.