Mark Brown from East Yorkshire.
Brown was last in charge of the Millers for the 4-0 win over Bradford at the start of last season, but we've not seen him in action since.
This season in ten games he's shown 22 yellow cards and three reds.
Running the lines are Mr. M. Denton (Lancashire) and Mr. S. Meredith (Nottinghamshire).
The fourth official is Mr. N. Smith (Derbyshire).