Yeah actually AC Milan qualifying from there group is totally dependent to there performance on there today's match against Borussia Dortmund because there points is actually closed so if they win Borussia Dortmund they will automatically become the first on there group and also qualify for another round.
But actually for AC Milan to win Borussia Dortmund is not that possible because Borussia Dortmund is far better than AC Milan in times of performance and quality players and besides is not only AC Milan that needs the wining because Borussia Dortmund also need it because if Borussia Dortmund lose the match and Newcastle United wins PSG that means AC Milan and Newcastle United will become the first and second position on there group table.
This is a very important match for AC Milan and Borussia Dortmund, AC Milan is a bit of a favorite because this match will be played at their home ground and also in my opinion if we look at the qualities of the two teams they are not much different, so both of them still have the same possibility of winning match.
Borussia Dortmund might be a little more comfortable because they only need a draw and even if Borussia Dortmund loses they still have a chance to qualify, but not for AC Milan in this match AC Milan will give everything because if they can't win then it's almost over. make sure they won't make it out of the group phase.