Paris Saint-Germain squandered a chance to ignite their stuttering Champions League campaign as Napoli came from behind to earn a 1-1 home draw on Tuesday.
Lorenzo Insigne punished a Thiago Silva error from the penalty spot after 61 minutes to hand the Italian side leadership of Group C following Liverpool's earlier 2-0 loss to Red Star Belgrade, Napoli's next opponents.
Gianluigi Buffon, making his Champions League debut for PSG, had made several saves to preserve a lead earned by Juan Bernat, but his foul in attempting to atone for Silva's loose touch allowed his former Parma boss Carlo Ancelotti to have the last laugh.