Former Italy striker Mario Balotelli was booked for complaining to the referee about alleged racist chants as his Nice side lost to Dijon.
The ex-Manchester City and Liverpool forward was unhappy with the reaction from the home fans when he missed a shot in the 72nd minute, gesturing to the Dijon supporters to be quiet.
He spoke to referee Nicolas Rainville, who showed him a yellow card.
Dijon won the game 3-2 with all the goals in the final 30 minutes.
The hosts took the lead through Julio Tavares, before Pierre Lees Melou and Alassane Plea put Nice ahead.
But Tavares converted a penalty and Kwon Chang-hoon scored a late winner.
Nice president Jean-Pierre Rivere complained about the officiating after the game, although he did not mention Balotelli and was instead angry with the penalty decision.
Earlier on Saturday, leaders Paris St-Germain beat Toulouse 1-0 to move 12 points ahead of Monaco, who saw off Anger 4-0.