• Mourinho says pressure on rival after change in transfer policy • Liverpool have spent £250m on six players since January

José Mourinho has said there is a “demand” on Jürgen Klopp to win a first trophy at Liverpool next season because of the club’s high level of investment.

Alexis Sánchez shines before Manchester United beat Milan in epic shootout Read more

Liverpool have been the transfer window’s biggest spenders, recruiting Alisson for £67m, Fabinho (£43.7m), Xherdan Shaqiri (£13m) and Naby Keïta for around £52m. They also spent £75m on Virgil van Dijk in January.

Klopp, who has been at Anfield for nearly three years, had previously stated he was against paying high fees for players and the Manchester United manager referenced this.

“The problem is you have to invest well and, honestly, I think they did very well because every player they bought are quality players and I’m happy for them,” he said. “And I’m also happy to smile and to see that you can change your opinion and change as a person, is funny [meaning Klopp].

“That’s OK. But maybe this season finally you demand they win. Now you have to demand and say the team – with the investments you are making last season and you make now, that will probably be the record of the Premier League this season, a team that was a finalist in the Champions League – you have to say you are a big candidate, you have to win.”

Facebook Twitter Pinterest Naby Keïta arrived at Liverpool this summer from RB Leipzig. Photograph: Andrew Powell/Liverpool FC via Getty Images

Mourinho also said he knew of Anthony Martial’s decision to return home for the birth of his child earlier this week. “When it is personal reasons, everyone analyses the way he thinks is the correct way,” Mourinho said.

“And when a man is going to be a father – in this case, it’s the second time he is going to be a father – and he decides it is very important for him to go, nobody has the right to stop him to go.”

Anthony Martial’s departure from tour deals José Mourinho new blow Read more

Mourinho also confirmed the defender Matteo Darmian wants to leave United. “Matteo wants to leave and when a player wants to leave, if the right offer arrives, you have to try to be human and let the player follow his instinct but not at any price,” he said, before discussing his lack of options at right-back.

“Until now the offers we got for Matteo are not even close to being accepted. [Antonio] Valencia is injured and he will be injured for the beginning of Premier League, Diogo Dalot is also in the recovering phase, he will not be ready for beginning of Premier League.

“Ashley Young is a possibility to play right-back but he is on holiday. I don’t know if he fancies to be back for that and put himself to be available for the team or stay on holiday. Victor Lindelöf is a possibility, he is not a right-back but he is a possibility – he starts training next Monday. I will send people to Manchester to train with Victor, it makes no sense for him to come to the US.

“So if Matteo leaves he leaves because the right offer arrives and if he stays, he can be important for us.”