Barcelona midfielder Andres Iniesta is anticipating another tough night against Chelsea this week but is hoping for a similar outcome to their last visit to Stamford Bridge. Iniesta left Chelsea heartbroken back in 2009 when his stoppage-time strike earned Barça a 1-1 draw in London and saw the Catalan side progress through to the UEFA Champions League final instead of the Blues on away goals. Chelsea now have the chance to gain revenge over Pep Guardiola's reigning champions when they clash again in this year's semi-finals and, speaking ahead of Wednesday's first leg at Stamford Bridge, Iniesta knows the Premier League side will again be no pushovers. "It's painful to be knocked out so close to the final. Now we are facing each other again and undoubtedly their desire to beat us and be in the Champions League final will be significant," Iniesta said today. "We hope that things will turn out well for us again this time. "We are going there with the intention of winning, to have a good game and commit as few mistakes as possible, as in the Champions League they are very costly. We always go out to win. We know that it is a knock-out tie and there is a return game, but our only intention is to win," he went on.