Chelsea v Barcelona: Juan Mata confident Stamford Bridge will be Champions League holders' Achilles heel Barcelona have been on a dizzying run of form lately, winning 14 of their last 15 matches and drawing the other - 0-0 against AC Milan in the Champions League quarter-final first leg. Lionel Messi has scored 26 goals in 14 games during that run and the Argentine World Player of the Year has set a new Champions League season record of 14 goals. His incredible 63 goals in all competitions this term is only four short of the all-time season record of 67, set by former Bayern Munich striker Gerd Mueller in 1972-73. That said, Mata appreciates that Barcelona cannot, and should not, be considered a one-man side. "I saw him [Messi] play against Levante and he always appears," Mata continued. It is normal for everything to focus on Messi because he is what makes the difference but Barcelona are a very complete side. Alexis is a great player and they have Fabregas, Iniesta and Xavi. If Barcelona do not score then that's a defensive success. Seemingly rejuvenated under the leadership of interim manager Roberto Di Matteo, it is not only Mata who shares the growing belief that Chelsea have every chance of reaching this year's final. While acknowledging they go into tomorrow night's match as underdogs, Chelsea have rediscovered some of their old dynamic form under the Italian coach. It is 50-50 [tomorrow], even if Barcelona are set to be the best team in the world and they have the best player in the world. It is two games, anything can happen," Drogba said. When asked about the heartache of 2009, and his well aired post-match tirade, the Ivory Coast striker added: "It was a few years ago, so things have changed since then. But the desire is the same, the desire to beat them.