The last Blues game he refereed was our Championship home fixture against QPR in September 2019.BCFC
So far this season, the Lancashire-based official has refereed 36 games where he has produced a total of 145 yellow cards and five reds.
The last Blues game he refereed was our Championship home fixture against QPR in September.
That match ended 0-0, with Blues' Kristian Pedersen and Jacques Maghoma the only players booked.
During his refereeing career to date, Mr Simpson has taken charge of nine Blues matches - three of which Blues have won, three they have drawn and three they have lost.
The last Ipswich game he took charge of was their Sky Bet Championship away fixture against Middlesbrough in December which the Tractor Boys lost won 2-0.
Three players were booked in that game; including Flynn Downes and Trevoh Chalobah for the visitors.
In total, Mr Simpson has refereed five Ipswich games, all of which they have lost.
Mr Simpson will be assisted on Saturday by Michael George and Nigel Lugg, with Charles Breakspear acting as the fourth official.