The football world were stunned on Monday evening when the reigning world champions were dumped out at the round of 16 stage by Switzerland on penalties.
Mbappe received a lot of criticism for his disappointing showing at the tournament, while it was saved penalty that confirmed the side's elimination.
There were reports that Adrien Rabiot's mother clash with the Mbappe and Paul Pogba's family after the encounter while there also said to be some dressing room tension.
French outlet L'Equipe have now reported that Mbappe's relationship with Griezmann seems to going through some 'turbulence'.
It is believed that Mbappe was jealous of the influence Griezmann had in the national set up, while Griezmann wasn't too thrilled about Karim Benzema's return to the squad as he would have to change his role.
The report added that Mbappe developed a big ego which seemed to have irked the likes of Hugo Lloris and Steve Mandanda while he had already fallen out with Olivier Giroud.
