The result means Luis Enrique’s side have 12 points after seven league games, their lowest tally at this stage of a season since the 2010-11 campaign.
Although the French champions were boosted by the return of Kylian Mbappe after he limped off in last weekend’s 4-0 win over Marseille, he had a frustrating afternoon and was booked for diving late in the game.
Clermont goalkeeper, Mory Diaw, who played for PSG as a youngster, did well to deny a number of efforts from Mbappe, Randal Kolo Muani and Ousmane Dembele before the break.
His best save came in the second half when he clawed away a Goncalo Ramos effort despite going to ground early, and he rounded off his performance with a crucial stop to deny Danilo Pereira’s header.
PSG head into Wednesday’s second Champions League game against Newcastle. In Ligue 1, PSG is one point behind surprise leaders, Brest, who have a game in hand. —BBC