Going out of such a big group stage — where even Belgian side Club Bruges is ahead of PSG — would set a new low for the cash-rich, Qatari-backed club. PSG's owners, QSI, have spent fortunes trying to turn PSG into a dominant European club.

Four years ago, in 2020, Bayern Munich beat Paris Saint-Germain 1-0 in the Champions League final. Tonight, they meet for the third time since. Those four years — an Olympic cycle, a World Cup cycle — is a period of time that lends itself to assessing how the two clubs, which share as many similarities as differences, have changed.

American soccer fans can stream every fixture of this season's tournament via Paramount Plus, which has exclusive live English-language broadcast rights in the US for the UEFA Champions League. Paramount Plus has two main subscription plans in the US: Essential for $8 a month and Premium for $13 a month. Both offer coverage of the Champions League.