Oliver Langford from the West Midlands.
Langford is usually a ref who likes to keep his cards in his pocket, although he did produce a red card on the previous occasion he has reffed the Millers this season.
That was down at Exeter as Ian Sharps' header gave us a 1-0 win back in November and substitute Mitch Rose was dismissed late on for a reckless tackle in soggy conditions.
This season Langford has issued 57 yellows in 32 games, showing 4 red cards.
Running the lines are Mr. L. Betts (Norfolk) and Mr. S. Burt (Northamptonshire).
The fourth official is Mr. J. Magill (Essex).