Mason Greenwood was reportedly targeted with missiles after he scored against Nice in a feisty Riviera derby clash on Friday night.
Greenwood netted twice as Marseille thrashed their rivals 5-1 to go top of Ligue 1 and continue their impressive start to the season.
But the game hit a flashpoint after Greenwood scored his first goal to put Roberto De Zerbi's side 2-0 up in the first half.
As he wheeled away to celebrate, the 24-year-old appeared to taunt the Nice fans as he stuck his tongue out in their direction and stopped in front of the ultras section.