Juventus midfielder Adrien Rabiot and Monza's Rabert Gagliardini have clashed online.
The pair have taken Friday's row onto social media after Juve's 2-1 win.
Gagliardini celebrated Monza's late equaliser in the face of Rabiot before Fede Gatti's winner a minute later.
Rabiot posted a message to social media after the game: "Learn to always stay humble. Because until the referee blows the whistle for the end of the match, everything is still possible. Remember this."
Gagliardini responded, stating: What happens on the pitch stays on the pitch, not on social media."
He then added in Monza dialect: "Go call your mother!"
Rabiot famously counts on his mother, Veronique, as his agent.