Blackburn Rovers boss Sam Allardyce has said he is wary of non-league club Blyth Spartans, their next opponents in the FA Cup.

"You can't look forward to it because we've nothing to gain and everything to lose," Allardyce said.

"It's a very difficult game. They will play well above themselves and run until they drop. They will play to a standard they don't normally play to and we've got to combat that.

"We've got to be professional against a team that shouldn't really get a result against us. If we don't get the attitude right, we could slip up."