Salomon Kalou is bullish about Chelsea's chances against Barcelona in the Champions League, insisting the Primera Liga holders have "weaknesses".
Chelsea face Barcelona in the semi-finals of the competition after the Blues overcame Benfica 3-1 on aggregate and their Spanish counterparts defeated AC Milan by the same scoreline.
Few are giving Chelsea much hope versus Pep Guardiola's side, who are the reigning European champions, but Kalou is optimistic that his team could cause an upset.
Kalou said: "Our fans expect us to win, we expect to win. People see the way Barcelona play today and they can say, 'Chelsea have no chance against Barcelona'.
"But, as a player for Chelsea, we work hard every day in training and we believe that on the pitch is the only way of answering all those negative thoughts."
He added: "They have their weaknesses. We know that they haven't been so confident at the back, conceding a lot of goals, so that is something we can play on."