Cape Town - South African players Cheslin Kolbe and Danie Mienie, who ply their trade at French Top 14 club Toulouse, were allegedly involved in a nightclub brawl earlier this month.
According to French publication L'Equipe, Thierry Barraque, a businessman with ties to the club, said he and his family were intimidated and threatened by a group of five people - which included Kolbe and Mienie.
"They started turning around my daughter and my niece, we asked them to stay quiet," Barraque reportedly said.
A fight then allegedly broke out between Barraque's son and the players, who were expelled from the venue.
The businessman allegedly tried to defend his son and suffered two broken ribs, which led to him spending three days in hospital.
Barraque said his son suffered bruises to his face and a sprained wrist which saw him miss a week of work.
He said he expected a formal a formal apology and sanction from Toulouse against the players.
If not, he could withdraw financial backing to the club.
Kolbe, who can play wing and fullback, joined Toulouse from the Stormers in 2017, while prop forward Mienie joined from the Cheetahs in the same year.
This is not the first instance of South Africans abroad being involved in unsavoury bar incidents following an altercation between former Lions coach Johan Ackermann and his son, Ruan, in a nightclub in a Cheltenham nightclub in late 2017.