The English Premier League outfit have climbed through a terrible patch to get there and have overcome a big deficit against Napoli and shackled Barcelona. They are weary and without defensive general John Terry, foot soldier Branislav Ivanovic and an explosive Ramires.
However, for those left behind it is a gargantuan ask. The centre-backs are likely to be Gary Cahill and David Luiz, and these two are not known for their ability to hold any shape.
The issue with this situation is that two of the trickiest wingers in the world, Franck Ribery and Arjen Robben, slither up and down the touchlines for Bayern and they have no qualms with swapping wings throughout a game.
There will not be an aerial bombardment, but these two are capable of slinging in crosses as well as cutting inside and making incisive passes or curling a shot round defender themselves. They are hard to get a grasp of.
Chelsea can of course power through with their own barging tactics and tipping balls over the top for Didier Drogba or Fernando Torres may prove fruitful, but Bayern’s wingers can always get to the raw edges. Anything deft Juan Mata can do for Chelsea the two runners for Bayern can do as well.
It will be fascinating. Chelsea will be underdogs and in a season like this it suits them and Roberto Di Matteo. Their run has defied pressure and Cup successes have helped energize aging campaigners. One more tilt will hurt but this would be the only way Chelsea could do it.
They know that and so do Bayern. Go for the kill and Chelsea could slug them with a counter that may lack subtlety, but will be a hefty punch.
Do the Germans go for all out attack and hope their opponents cannot hack the pace, or do they wait for their moments and whip out with their viper-like attack? There is always Mario Gomez to contend with, too…
The odds are against Chelsea. Chelsea are not complaining just now. Will they after a night in the Allianz Arena?