Marseille welcomed back inspirational playmaker Dimitri Payet after a minor injury. But Nantes was the more impressive and scored in the 34th minute when Belgian winger Anthony Limbombe met Bamba's cross with a diving header.
Midfielder Morgan Sanson equalized five minutes later when Boubacar Kamara broke down the right and unselfishly passed the ball back to him inside the penalty area. Nantes regained the lead in the 53rd after Marseille lost the ball in midfield. It was quickly fed to Bamba on the left of the area, and he cut inside before curling a fine shot into the right corner.
The goal was awarded when a video review ruled that another Nantes player had not impeded goalkeeper Steve Mandanda when Bamba shot. The player had ducked out of the way of the ball. Mandanda fumbled a shot in injury time and Marseille's misery was compounded when center half Álvaro González turned the ball into his own net, under strong pressure from forward Moses Simon.
OTHER MATCHES Lille moved into third spot beating last-placed Toulouse 3-0 at home. Former France and Chelsea forward Loïc Rémy took two minutes to put Lille ahead, then added another late in the first half. Portugal midfielder Renato Sanches wrapped it up in the 72nd.
Monaco remained in fifth place after needing a late goal from Chile defender Guillermo Maripán to draw at Dijon 1-1. Angers beat Montpellier 1-0 and Strasbourg drew 0-0 at home to 19th-place Amiens, which held PSG to 4-4 last weekend.
SUNDAY'S GAMES Rennes can reclaim third place from Lille if it beats Nimes at home, while struggling Saint-Étienne hosts Reims.
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