Manchester United boss Erik ten Hag was unhappy with his players after their friendly defeat at Cadiz.

Anthony Martial, Aaron Wan-Bissaka, Alejandro Garnacho, Donny van de Beek, Martin Dubravka, Victor Lindelof and Scott McTominay were some of the stars handed an opportunity for the 4-2 defeat.

"It is quite clear, we were not awake and still sleeping in the first 15 minutes," Ten Hag told MUTV.

"We prepared them. [We knew] They are a threat in transition and we have seen the second goal. It can't happen.

"You are not awake. Especially in the midfield, we got run off, this is not possible. Unacceptable.

"The first goal was as well. A set-play, bad organisation and bad discipline in the organisation, and you concede a goal.

"After that, we came into the game. We get a penalty, a clear one, and we deserve another one in the second half.

"We came into the game but we couldn't score an equaliser before half-time."

Ten Hag changed his entire outfield side at half-time and said the young stars would have learned a lesson from the match.

"They gave energy," he said. "They ran, they fight... maybe not always in the right organisation and they made mistakes - they are not used to playing this level.

"But it was a good lesson. You see when you make small mistakes, there are big consequences and you can lose the game. That's what happened.

"That has to be the standard always.

"The first 15 minutes cannot happen, it is not our standard. It should not happen.

"We have to strike it, draw a line under it and move on. But it can't happen in the future.

"We are unhappy with this game. Of course, you have some positives when you lose but today you have more negatives."