Cristiano Ronaldo made headlines in Italy once again after another furious reaction to an early substitution reportedly saw him leaving the stadium early. New reports now suggest that he also hurled some foul language at his coach as he walked off the pitch.

Read: Frustrated CR7 Storms Off Pitch, Leaves Stadium? Sarri Responds

The 34-year-old was substituted after just 55 minutes in Juventus' 1-0 win over AC Milan on Sunday, with his replacement, Paulo Dybala, scoring the eventual winner.

While there have been reports that Ronaldo himself asked for to be substituted, a number of Italian and Portuguese publications have stated that he was left furious with his coach.

According to Il Bianconero, the superstar even swore at manager Maurizio Sarri as he walked off the pitch, calling him a "son of a wh***".

Click through the gallery below to see some images of the incident:

Sky Italia reported that Ronaldo left the stadium three minutes before the final whistle blew, while Gazetta dello Sport believe he will not be fined for his actions, but is expected to apologise to his teammates for not returning to the bench.

Juve sporting director Fabio Paratici reportedly contacted the superstar's agent, Jorge Mendes, to clear up the matter and find out if there were any deeper issues troubling his client.

Ronaldo, meanwhile, has remained silent on the incident, but did take to social media after the match against Milan to write "difficult game, important victory! #finoallafine", accompanied with an image of himself from the game.

Read: Ronaldo Facing Two-Year Ban?

He has since left Turin to link up with his Portugal teammates ahead of his country's upcoming 2020 UEFA European Championship qualifiers against Lithuania and Luxembourg.

Do you think Ronaldo should be punished for his reaction? Have your say in the comments section below.