Manchester United manager Erik ten Hag was left fuming with his players after a 1-0 defeat to Rosenborg in a pre-season match on Monday.
Noah Holm scored the only goal of the game with the last kick.
Ten Hag has now informed his squad that they are far from meeting his standards.
Despite most first-team members being on vacation following Euro 2024, Mason Mount, Marcus Rashford, and Casemiro were among those who played.
Ten Hag told MUTV: “The result is not secondary. Of course, it’s pre-season, but at Man United, there is a standard: you win games, definitely, not lose games. If you can’t win games, don’t lose like we did in the end, in the last second of the game. The performance is more important, and the performance was below standard.”