Chelsea host Bayern in the first-leg of the Champions League round 16 tie.
Flick stated yesterday: "Chelsea are a wonderful team, with a mix of young and experienced players. (Frank) Lampard is doing a great job, he should qualify for the Champions League (next season).
"They play free-mentally, they have a big attack. They have speed and make some mistakes in defence, but they can really put on pressure. I saw the game against Tottenham, they can annoy the rhythm. We must play boldly.
"We know what to do, we are confident that we can perform well. Here at Bayern we must always aim to win and for coaches it is the fundamental requirement. We have quality but we can improve; we don't know where our path will take us.
"(Leon) Goretzka? He trained well today and should be able to play. (Philippe) Coutinho? He loves football, I watch him in training and I'm positive. Sometimes we put him under too much pressure; we will support him in any decision that will be made."