Unionistas de Salamanca coach Dani Ponz is adamant they can upset Barcelona tonight.

Unionistas host Barca in the Copa del Rey round of 16.

Ponz said: "We face one of the best in the world.

"We must approach the game with maximum precision and without making mistakes. We must take advantage of their weak points in a surgical way and get it right."

On his pre-match message to his players, Ponz said: "To enjoy every minute.

"We want them to have a high level of performance released and relaxed and to come out with the personality and with what we are doing every day.

"There's no intimidation. This is a chance you dream of."