With either team now only two games awayn from the lucrative group stages of the competition, CSKA believe they will be overwhelming underdogs and have nothing to lose.
But the CSKA coach, Miodrag Jesic, still wants his team to attack the Champions of Europe.
"It would be foolish to think that we have something with which we could pose a threat to the current European champions. But on the other hand, it doesn't mean that we will defender with 11 players. Quite the opposite, we will try to attack, and try to play football as we do on every match," he said.
He added, "We feel no pressure, we can only gain from a match like this."