If they lose and United win, PSG would only be saved by a miracle

The Paris Saint-Germain de Neymar and Mbappé almost life is at stake tonight against Leipzig, in a match corresponding to the fourth day of the group stage of the Champions
League that faces them in the Gallic capital. A French defeat against the German team would compromise, and in what way, the continuity of the current European runner-up in the highest continental competition. Especially if the ManUnited, who plays at Old Trafford, defeat also to Basaksehir Turkish.

If these two results occur (PSG defeat and United triumph), those of Tuchel practically they would run out of options to reach the pass to the round of 16: United and Leipzig would add 9 points, by 3 PSG and Basaksehir, with two days remaining to conclude the league.

In this case, the French options would necessarily go through win their last two games, at Old Trafford and against Basaksehir at home. But in addition, they should defeat the English by more than one goal difference or scoring more than two goals to leave the 1-2 registered between the two in Paris and wait for Solskjaer's men to be defeated also against Leipzig, on the last day and in German fiefdom.

A tie on points with Leipzig (2-1 in Germany and assuming the Germans win today in Paris) would leave out the French, who would be equally harmed in a triple tie with Germans and English.