A move away could be on the cards come the summer if things fail to improve.
Pogba was supposedly keen to join City having decided to give up on his Old Trafford career.
However, Diario Gol say the France star now wants to join Real Madrid.
He reportedly feels that, with City not rising to his bait, Los Blancos represent his best chance of salvation.
However, club president Florentino Perez is said to think differently and will not move for the United man.
Man Utd latest: Will Mourinho drop Pogba?
Regardless of whether he really did want to join City, Pogba may have a chance to save his United career now.
The 25-year-old bagged a brace as the Red Devils beat Manchester City 3-2 at the Etihad yesterday.
And, speaking afterwards, Mourinho was full of praise.
“I was impressed but I don’t know because I didn’t even speak with him about what Pep said or what Raiola said. I didn’t speak,” he said.
“I’m not interested if it was Pep or Mino was right. I am not interested in that.
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Man Utd news: Paul Pogba is not wanted by Real Madrid chief Florentino Perez
“I know that Paul played well against Swansea and Paul had a very good week of work, especially Tuesday and Wednesday, he had two fantastic training sessions. This game comes in that segment.
“Of course, two goals, for a midfield player, especially in a big match like this one, stays in the memory of the people. Especially for the fans.
“It stays and he needs that confidence because he knows, I know, everybody knows, he had some performances not at the level of expectations we have from Paul.
“But he’s improving. Against Swansea I was happy and today he, Matic and Herrera, I think they were phenomenal for 90 minutes.”