Atletico have lost just once in all competitions this season, while they have a perfect record on their home patch. However, Barragan is confident that an upset can be caused in the Spanish capital.
"We're going there with the mentality of getting a win, having a good game and to show who we are at the Calderon. We're going there with the mentality of getting three points," he told reporters at a press conference.
Atletico currently sit second in La Liga – level on points with leaders Barcelona – while Valencia sit ninth following a disappointing start to the season.