Los Ticos have been drawn against the Three Lions as well as Italy and Uruguay for the tournament in Brazil next summer and Campbell, currently on loan at Greek club Olympiakos, feels his national team are a chance of causing some upsets.
"England is a very strong country with a lot of good players and of course they have the chance to win the World Cup," he said.
"But they have weaknesses that can give us a chance.
"People are writing us off and that is normal because Costa Rica is a small country.
"But at the World Cup next summer, things will be very different."