Atletico Madrid defender Juanfran has insisted that his side will beat Juventus in Wednesday's Champions League Group A clash at the Vicente Calderon.

Atletico lost their first group match to Olympiacos, leaving last season's finalists without a point at this stage of the competition.

However, Juanfran has vowed that his team will overcome the Italian outfit.

"We know that we must not lose. We will be facing one of the best teams in Europe but we have an amazing side and we'll win," the Spanish right-back told reporters.

"We cannot fail after the hiccup against Olympiacos and to lose twice would see us practically out, or at least it would make it very difficult to get through to the next stage.

"However, the beauty about this team is that the tougher things are the more it competes. When there are more problems the better we perform."

Atletico and Juventus have never met in European competition.