Arsenal striker Joel Campbell admits Costa Rica's squad is buzzing after their amazing World Cup success.
Costa Rica face England tomorrow knowing they're into the knockout phase.
"Football is not decided by what shirt you're wearing," said the forward.
"With work and effort, you can win against anyone. We always believed we could do this. Of course we did. We were working for this moment and we have achieved.
"You never know what will happen in but we will keep working to do more."
