The video has been around social networks since Sunday evening.
Clermont's solid Argentine second-line, Tomás Lavanini, charges.
And is stopped dead by his compatriot, Marcos Kremer, who wears the colors of the Stade Français Paris.
The two players, back from the Rugby Championship with the Pumas, played their first Top 14 match of the season.
Calendar and results Top 14
Ranking Top 14
For Lalavanini, it was even the very first game under his new colors, since he was recruited in the offseason by ASM.
We will have to wait a little before he can play his second.
Shaken on impact, the second-line went through exams that revealed a crack in the jaw.
He will undergo additional examinations to determine the severity, for an absence that can rise to several weeks.