Chelsea have launched an internal disciplinary procedure following Enzo Fernandez's social media video which the French Football Federation (FFF) said included an alleged racist chant.
Fernandez, who posted the video in an Instagram live, was chanting a derogatory song about France following Argentina's Copa America victory on Sunday along with some of his team-mates.
The FFF said they will file a legal complaint against Argentina for the video, while Fernandez's Chelsea team-mate Wesley Fofana, who has one cap for France, reposted it on his social media account with the caption: "Football in 2024: uninhibited racism".
Fernandez later apologised for the video, saying he was "truly sorry".
"I want to apologise sincerely for a video posted on my Instagram channel during the national team celebrations," he said.
"The song includes highly offensive language and there is absolutely no excuse for these words.
"I stand against discrimination in all forms and apologise for getting caught up in the euphoria of our Copa America celebrations.
"That video, that moment, those words, do not reflect my beliefs or my character.
"I am truly sorry."
On Wednesday, Chelsea released a statement confirming their own internal investigation.
"Chelsea Football Club finds all forms of discriminatory behaviour completely unacceptable," the statement read. "We are proud to be a diverse, inclusive club where people from all cultures, communities and identities feel welcome.
"We acknowledge and appreciate our player's public apology and will use this as an opportunity to educate.
"The club has instigated an internal disciplinary procedure."
