Former Germany captain and Chelsea midfielder, Michael Ballack says not to write off the Blues ahead of the UEFA Champions League final this weekend.

Roberto Di Matteo's side reached the final after beating reigning champions Barcelona, 3-2 over two legs with a 91st-minute goal from Fernando Torres.

Saturday's opposition, Bayern Munich are strong favourites to lift the European Cup, but Ballack, who joined Chelsea in 2006 from Bayern, believes that the west London side have a chance after beating Barcelona against the odds in Camp Nou.

"Of course Chelsea can upset the odds - they did it against Barcelona," the Bayer Leverkusen player told Chelsea TV.

However, he also feels that Bayern have a major advantage of playing at home in the Allianz Arena on Saturday.

"Everything looks like Bayern are favourites, they are playing at home which is a big advantage in a final.

"They kicked out Real Madrid in the semis, and although they were two tight games, they deserved it. They have a good team and were in the final two years ago, when they lost against Inter Milan so they're very hungry."

Chelsea go in to the game without four influential players; Ramires, Branislav Ivanovich, Raul Meireles and captain John Terry, due to suspension.

Further speculation surrounding the game involves Chelsea's interim manager Di Matteo, who is still uncertain about his future at the club and is expected to find out his fate after the final.

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