PSG see their run as Coupe de France holders ended by Nice in a penalty shoot-out as Marcin Butka produced a fine stop to deny Xavi Simons from the spot, securing a 6-5 win on penalties.
The two sides played a goalless draw in normal time, sending the game into a shoot-out.
There were twists and turns, but Butka, on loan at Nice from PSG.
He made the decisive save to send his parent club out of the competition in the round of 16.
Nice advance to the quarter-finals, where they will take on Marseille next week.
PSG (4-3-3): Gianluigi Donnarumma;
Colin Dagba, Thilo Kehrer, Presnel Kimpembe, Nuno Mendes;
Marco Verratti, Danilo Pereira, Ander Herrera;
Lionel Messi, Mauro Icardi, Julian Draxler.
PSG SUBS: El Chadaille Bitshiabu, Nathan Bitumazala, Juan Bernat,
Edouard Michut, Alexandre Letellier, Kylian Mbappe,
Leandro Paredes, Xavi Simons, Denis Franchi.
NICE (4-4-2): Marcin Bulka;
Jordan Lotomba, Jean-Clair Todibo, Dante, Jordan Amavi;
Justin Kluivert, Morgan Schneiderlin, Kephren Thuram, Hichem Boudaoui;
Amine Gouiri, Kasper Dolberg.
NICE SUBS: Melvin Bard, Danilo, Andy Delort, Walter Benitez,
Flavius Daniliuc, Mario Lemina, Evann Guessand,
Youcef Atal, Bilal Brahimi.
The PSG loanee came back to haunt his parent club as he produced brilliant saves for denying Paredes and Simons from 12 yards.
The goalkeeper only had two saves to make against the lacklustre hosts in 90 minutes.
Nevertheless, he provided a calming presence between the sticks throughout the contest before stepping up when it mattered most.
Injury Woes for the Parisian
Several key PSG players are nursing from the injuries; Sergio Ramos, who Recently played the full 90 minutes, suffered an injury once again.
Meanwhile, Neymar is still recovering from his ankle injury.
So, What lies ahead for PSG and Nice?
PSG return to Ligue 1 action when they travel to Lille on Sunday, the same day that Nice welcome Clermont to the top flight.
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