It's Champions League or bust; football ROUND-UP.
Spain star Mata joined Chelsea from Valencia last summer after rejecting the advances of both Arsenal and Tottenham.
Chelsea must now beat Bayern in the German giants' own back yard to avoid being out of the competition next term for the first time since 2002 and in the Europa League instead.
Asked what it would mean to be in Europe's second-tier competition next season, Mata said: "We want to play in the Champions League and we want to win this year to play next season."
Pressed further, he added: "Our objective is to play in the Champions League.
"We're only thinking of winning and, after that, let's see."