Paris Saint-Germain's march towards another Ligue 1 title was slowed Sunday as they went down 2-0 at home to Rennes, the second time Christophe Galtier's side have lost to the Brittany club in 2023.
Kylian Mbappe had an effort disallowed for offside before Karl Toko-Ekambi put Rennes in front with a magnificent strike in the final minute of the first half.
Arnaud Kalimuendo then made it 2-0 three minutes after the restart against the club he left in the last close season, as PSG slumped to a first home league defeat of the campaign.
It is the Parisians' fourth Ligue 1 loss this season, all of them coming in 2023.
They also lost away to Rennes when the teams last met in January.
Marseille cut PSG's lead at the top of the table to seven points after beating Reims 2-1 in Sunday's late game.
Rennes, meanwhile, reclaim fifth place from Lille in the fight for European qualification.
The team finishing fifth will qualify for the Europa Conference League, with the top three going into the Champions League and fourth into the Europa League.
RESULTS
Ajaccio 0 Monaco 2 (Ben Yedder 27, Diatta 84)
Montpellier 2 (Wahi 61, 73) Clermont 1 (Khaoui 32)
Nice 1 (Laborde 79) Lorient 1 (Meite 30)
Strasbourg 2 (Nyamsi 5, Diallo 86) Auxerre 0
Troyes 2 (Ripart 34, Lopes 38) Brest 2 (Lees-Melou 30, Castillo 74-P)
PSG 0 Rennes 2 (Toko-Ekambi 45, Kalimuendo 49)
Reims 1 (Balogun 13) Marseille 2 (Sanchez 16, 29)
Saturday
Toulouse 0 Lille 2 (Alexsandro 85, Bayo 90+11)
Lens 3 (Fofana 27, Openda 30, 46) Angers 0
Friday
Lyon 1 (Lacazette 24) Nantes 1 (Lukeba 2-og)
