Michael Bull will referee Port Vale’s clash with Chesterfield this weekend.

The Valiants take on Dean Saunders’ side at Vale Park on Saturday, kick-off 3pm, in Sky Bet League One action.

Mr Bull has officiated six games so far this season, brandishing 17 yellow cards and two reds.

He was in charge of Vale’s 2-2 draw with Bradford City at Vale Park last season.

Ian Dudley and Joseph Johnson will be his assistants while Matthew Parry will be the fourth official.