A report coming out of France is reporting that Dustin Johnson and his Ryder Cup teammate Brooks Koepka almost came to blows Sunday night after the Ryder Cup.

James Corrigan of the Telegraph was the first to report the story on Johnson and Koepka, who are considered friends and workout partners. They were at a party with the European Ryder Cup team when the incident occurred. Corrigan said witnesses were “clearly shocked and upset by the nastiness, which was very threatening.” The duo played together in Saturday afternoon foursomes, losing to Justin Rose and Henrik Stenson. The Golf Channel and the Guardian posted similar allegations to Corrigan’s initial report.

Johnson’s fiance Paulina Gretzky and Koepka’s fiance Jena Sims were both in there room at the time along with European players wives.  Insiders said that Gretzky was “clearly shocked and upset by the nastiness, which was very threatening.”