Manchester United and Real Madrid have become embroiled in a series of fights, over their pre-season training camp in Los Angeles.
The two European powerhouses have fallen out over hotels and training facilities after they both chose the American city as their base.
According to SportsMail, it degenerated so bad that organisers of the International Champions Cup and promoters Relevant Sports have had to step in to keep the peace.
One insider described the situation as “a nightmare”.
Jose Mourinho and his squad secured the Montage Hotel and also claimed the training pitch at Drake Stadium on the UCLA campus after arriving before Real. Their pitch is closer to the dressing rooms and also has swimming pools outside, to help the players cool off in the heat.
Madrid arrived on Tuesday and had to settle for the Beverley Hills Hotel, while using a smaller training pitch close to Drake Stadium.
United and Real will meet twice this summer, with the ICC fixture in Santa Clara on July 23 preceding their European Super Cup clash in Macedonia on August 8.