Police are warning football hooligans to stay away from clash between Chesterfield and Mansfield Town on Saturday.

They have also written to licensees in Chesterfield asking for extra help in preventing any disorder after the match.

Shoppers are also being warned the town centre will be unusually busy both before and after the match and traffic congestion is expected.

The game - expected to be a sell-out - kicks of at Saltergate at 1100 GMT.

Sergeant Graham Lamin, Chesterfield's football liaison officer, said: "We want everyone who comes to watch the match to have a good time.

"To make sure of that we will have extra officers on duty to deal with any troublemakers.

"Anyone who gets involved in any fights or disturbances will be arrested.

"Anyone in the town on Saturday can expect to see extra officers on the beat.

"We will keep our patrols on the streets throughout the afternoon and evening too."

Mr Lamin said no tickets will be offered for sale at the Division Two league game on Saturday.