Gelson Martins ensured Monaco finally escaped Ligue 1's bottom three as his goal downed Nantes 1-0.
Monaco have sacked vice-president and general manager Vadim Vasilyev.
Remi Walter's 69th-minute penalty gave Nice a third straight home win as Lyon lost 1-0 to end a five-game winning streak in all competitions.
Cesc Fabregas struck the winner for struggling Monaco in a much-needed 2-1 win against Toulouse in Ligue 1 on Saturday.
All the latest news and rumours, with updates on the futures of Jose Mourinho, Gareth Bale and Mesut Ozil.
Leicester have completed the loan signing of midfielder Youri Tielemans from Monaco until the end of the season.
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