"Following a cycling accident... Luis Enrique was treated by the emergency services and will undergo surgery for a fractured collarbone," the club wrote on X.
The Spaniard guided PSG to their first Champions League crown last season.
PSG's next game following the international break is a home fixture against Lens in Ligue 1 on September 14th.
Three days later the club begin the defence of their European title against Italy's Atalanta at the Parc des Princes.
