PSG were on their way, but December saw a first loss of the campaign to Guingamp (1–0) as the capital club finished the first half of the season in third place, three points adrift of Marseille.

In the UEFA Champions League, Thiago Silva and company wrote one of the most spectacular pages in the club's history: after a 1–1 home draw with Chelsea in the first leg of the round of 16, Les Parisiens produced an heroic qualification at Stamford Bridge, going through on the away goals rule.

A prestigious victory over Marseille (3–2) and a win in the 2015 Coupe de la Ligue Final against Bastia (4–0) followed before PSG were eliminated from the Champions League by future finalists Barcelona.

PSG bounced back by booking their place in the final of the Coupe de France with a resounding semi-final win against Saint-Étienne (4–0) and kept hopes alive of an unprecedented quadruple.

[3] Fighting tooth and nail with Lyon in the championship, PSG set a cracking pace with a series of big wins (6–1 against Lille, 3–1 against Metz, 2–0 against Nantes and 6–0 against Guingamp).