The counterattack that Bayern must anticipate when facing Galatasaray because seeing from their game against Manchester United, the long passes of the Galatasaray players for counterattacks are quite troublesome and this must be anticipated by Bayern who always attack by locking up the defence and their players always come out of their posts to help attacks such as Davies and Mazroui who are always active in helping Bayern's attacks this could be a gap for Galatasaray.
But I'm pretty sure with the current difference in strength then this will not be a problem for Bayern and they will still win 3 points in this match.
Bayern Munich also have to control the midfield if they want to limit Galatasaray's space and long balls are their mainstay when counter-attacking. Even though Bayern Munich has much better strength than Galatasaray, Tuchel must be careful if he doesn't want to lose points when hosting Galatasaray, because after all Okan Buruk will try to maximize the home game to have a chance of qualifying for the next round
Galatasaray's front line also looks very good, Ikardi and Saha have a balanced speed in building attacks, these two players played a big role in beating Manchester United at Old Trafford. Galatasaray also has a good defense and they don't concede more than 3 goals in each match, so Tuchel must implement a strategy that is suitable for his team in breaking into their goal.