Match officials appointed for Saturday
Nottinghamshire official James Adcock will be the man in the middle against Preston on Saturday.
It will be his second visit to the Checkatrade.com Stadium. He was last here in February 2012 for a 1-1 draw against Morecambe in League Two.
He has also refereed Reds twice away from home - the 1-0 defeat at Crewe last season when Martin Hinshelwood and Gary Alexander were in caretaker charge of the team - and a 3-1 win at Torquay in August 2011.
This season Mr Adcock has been in charge of 25 games and given out 90 yellow and nine red cards.
He will be assisted by Andrew Laver and Thomas Ramsey and the fourth official is Mark Mellor.