Tuchel's key man has been ruled out with a hip injury, but the coach would see his return to the pitch as nothing short of a victory: last season, he took part in 33 games, scored 23 goals and provided seven assists. Smaller numbers than in previous years, explained due to Neymar's arrival in the Parc des Princes.
One of PSG's most important games - their first Champions League game, against Zidane's team, no less - is around the corner and the Cavani's presence could be key to Tuchel's success. PSG have been expected to break ground in Europe's top competition for some years now, which is why the 18 of September the Parisians are expected to come out with a bang.
Reports claim he is progressing favourably, with L'Equipe reporting he could even be in shape for PSG's Ligue 1 game against Strasbourg.
If his progress is indeed positive, his presence against Real Madrid will be highly valuable, particularly now that he has become one of the pillars of the team.