EXTRA police will be on duty for Bolton Wanderers' away match against Wigan Athletic on Sunday.

The two teams will meet for the first time in more than 12 years after Wigan were promoted to the Premiership at the end of last season.

Football intelligence officers from Bolton and Wigan have been monitoring fan websites to gather information.

The head of Wigan police, Chief Supt Lee Bruckshaw, said: "There has been a lot of contact between the two sets of fans on message boards and we are monitoring it closely.

"Anyone who comes to Wigan and causes trouble can expect to be locked up and receive a football banning order."

Teams of police spotters will mingle with fans.

As many as 5,000 Wanderers fans are expected to make the journey to Wigan for the 1pm kick-off.

More than 100 extra police officers will be on duty for the game.

Meanwhile British Transport Police will help to patrol trains ferrying fans to the game.

The match will be all-ticket, meaning fans will not be able to pay at turnstiles.

The teams last met in April, 1993, when they were languishing in the third tier of English football.

Chief Supt Bruckshaw, who will act as match commander on the day, added: "We hope we will see some friendly rivalry on the day, but we are prepared in the event of any trouble.

"We know who the fans are who pose a risk and we will monitor them.

"Our counterparts from Bolton will be doing the same and we will work closely with them on the day."