Manchester United have discussed the possibility of signing Max Aarons of Norwich City.

Aarons is a 20-year-old right-back who can also play on the left.

Norwich would like to keep Aarons at least until the summer as they are at the top of the Championship.

Isco has chosen to leave Real Madrid for Sevilla next summer for a few of between €15 million and €20 million.

Isco has started just three matches this season and is out of contract at Real Madrid in 2022.

Isco would prefer to leave in January, but the lack of depth for Real Madrid makes that an impossibility. 

Arsenal also showed interest in Isco.

Diego Costa and Atletico Madrid have terminated their contract by mutual consent.

Costa will be free to join a new club on a free transfer.

Diego Simeone said Costa had given "everything" to the club.

"He has given us a lot and we have given him a lot," Simeone told a news conference on Tuesday.

"He needs new challenges because he feels good, strong, in good form. I can only imagine that wherever he goes he will do well because he is a fighter.

"Diego has always given us everything, in a sporting and human sense. Let's hope he finds the right path and we can see each other again and give each other a hug."

Costa rejoined Atleti in January 2018 for €66 million after three-plus season with Chelsea. 

Paris Saint-Germain have fired Thomas Tuchel and are set to hire Mauricio Pochettino as his replacement.

Pochettino was fired by Tottenham Hotspur in November of 2019.

Pochettino spent two years at PSG during his playing career where he won the UEFA Intertoto Cup in 2001.

While Tuchel remained well-liked in the dressing room, a number of players expected him to be fired. Tuchel was appointed on a two-year contract in 2018, replacing Unai Emery. Tuchel's third season ws overshadowed by a disagreement with PSG sporting director Leonardo over player recruitment. 

Atlanta United have hired Gabriel Heinze as manager on a two-year contract.

"This is a milestone moment in Atlanta United history, and we couldn't be more excited to welcome Gabriel as our next head coach," club president Darren Eales said.

"Gabriel's playing philosophy and commitment to youth development closely align with our ideas at Atlanta United, and we are happy to welcome him as we move into our club's next chapter."

Heinze will replace Frank de Boer, who was sacked in July.

Dominik Szoboszlai is set to sign a five-year contract with RB Leipzig as they will pay his €25 million release clause with Red Bull Salzburg.

Arsenal and AC Milan also had interest in signing Szoboszlai, who prefers to stay in the "Red Bull family" in January.

Szoboszlai has long been considered one of the best young talents in Europe but has had his breakthrough this season.

Chelsea will join Paris Saint-Germain and Real Madrid in pursuing David Alaba.

Alaba is expected to leave Bayern Munich on a free transfer in 2021.

Alaba is best known as a left-back but can play at centre-back or in midfield, providing useful flexibility to cover in a number of positions.

Zinedine Zidane has denied he could remain at Real Madrid long enough to become the club's version of Sir Alex Ferguson.

Zidane's job became more stable on Wednesday with Real Madrid's 2-0 win over Gladbach in the Champions League that saw them through to the round of 16.

"I'll never be Madrid's Sir Alex Ferguson, that's for sure," Zidane said in his post-match news conference on Wednesday night. "I don't know how long I'll be here, so I don't even think about it. I think about the day-to-day and how lucky I am to be here at this great club."

Zidane has been in charge over four years in two different spells.

"I like it, even in the complicated moments, not just when we win," he said. "But I don't know for how long. I've already been here a long time, in Spain, in Madrid, and I want to stay a bit longer."

Manchester United doubts Real Madrid or Juventus can afford to pay a transfer fee for Paul Pogba.

Pogba's agent, Mino Raiola, has announced he intends to find a new club for him.

Pogba is under contract with United until 2022. Pogba's preference is to join Real Madrid. 

United are determined that they will not be bullied into accepting a low bid for Pogba, who was signed for £89.3 million from Juventus in 2016.

Agent Mino Raiola has said Paul Pogba's tenure with Manchester United "is over."

United triggered a one-year extension in Pogba's contract that keeps him under contract until 2022. Pogba wants to leave in January and won't commit his future to the club.

"It's over between Manchester United and Pogba," said Raiola in the interview released on Monday.

"No point beating around the bush, it's better to speak clearly, look forward and not waste time looking for people to blame: Paul is unhappy at Manchester United.

"He is unable to express himself as is expected from him. He needs a change of club; a change of scenery.

"He has a contract which runs out in a year and a half -- in the summer of 2022 -- but I believe the best solution for everyone is that he leaves in the next transfer window.

"Otherwise, United know well the risk of losing him for nothing, given at the moment the player has no intention of extending his contract. If someone doesn't understand this, they understand little or nothing about football.

"In any case, they can all blame me if next summer Paul leaves."

Real Madrid and Juventus have both shown interest in Pogba in the past.