Bayern Munich should keep their attacking line as strong as possible as they have started to show a high level performance in the recent times. Mane needs to be treated as good as possible not to miss their PSG game at least. Besides Choupo-Moting might also leave the team as it seems. They need to keep their score contribution as big as possible.
For doing this we might see an offensive move in January by Bayern Munich maybe. I actually think that they were planning this for next summer but they might need this even in the middle of the season. The Bundesliga isn't much difficult for them maybe but they need to stay strong for the Champions League.
Several Bayern Munich players who competed in the world cup are likely to start training again in the near future, considering that Germany was eliminated in the group stage yesterday. Mane should be able to strengthen Bayern Munich after the world cup ends, hoping that his injury can heal faster. Choupo-Moting is also likely to start training after Cameroon were knocked out in last night's game. So Bayern Munich is the team that is most ready in the near future to carry out a Champions League match and they have no problems with their players.
Since Bayern Munich is what made up Germany front line and as Germany crashed out it will give them opportunity to resume training in order to resume the season on a serious note. Moting also crashed out with Cameron and will.meet them up. The major problem is Sadio whom we don't know if he will be fit any moment. I read somewhere that Mane will have to miss about 5 matches even after the world cup. With that permutations he will likely miss the encounter with PSG.