"I trust the coach," Al Khelaifi said in quotes reported by L'Equipe.

"We will see his decision, if he wants to change or if he does not change. But it's not because we have lost a match that we have to act now. We must make decisions with a cool head.

"But this is not the moment. We want to calm down. We want to see what the coach wants too. It's very important."

Tuchel highlighted the first-half errors made by Thilo Kehrer and Gianluigi Buffon as crucial to the outcome, and said United "never came to win".

"It's easy to explain (the defeat): we made two gifts in the first half," he said.

"We totally controlled the game in the first 30 minutes. We played with a lot of quality, a good mentality, a good reaction after this first gift to Manchester.

"We had a lot of opportunities. And there, without opportunity, without anything, there is this second goal of Manchester. And there, it's as if everyone said to themselves: 'They have two goals while they do not attack.'

"We controlled the game, it was a totally ridiculous result.

"I never felt that Manchester United was coming to win. But hey, they did it so congratulations for that but ... I do not know if the season is ruined. I do not know.

"Do you want a good answer 20 minutes after the match? This is the time to defend my players, that's all."

Tuchel said he is still in favour of video assistant referee (VAR) technology despite controversy over the award of the decisive spot-kick when Presnel Kimpembe was ruled to have deliberately handled a shot by United full-back Diogo Dalot.

"I think there are reasons why you can give this penalty," he said in quotes reported by Sky Sports.

"When (the referee) goes to VAR we know he has reasons. With handball, you have soft facts but not hard facts. The shot is wide, and then suddenly it's a penalty. OK."

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