Manchester United manager Jose Mourinho has hit back at Arsenal boss Arsene Wenger and Liverpool coach Jurgen Klopp for criticising the £100m valuation of his transfer target Paul Pogba.

The Red Devils are expected to announce the arrival of the Juventus midfielder before the start of the Premier League season next weekend.

It is believed that United are willing to pay a world-record fee of around £100m, which would make Pogba the most expensive footballer in history, eclipsing the £85m figure that Real Madrid paid to Tottenham Hotspur for Gareth Bale in 2013.

Wenger, who has had numerous tussles with Mourinho in the past, recently described the hefty sum as "completely crazy", while Klopp claimed that "the day this is football, I'm not in a job anymore".

In today's press conference, Mourinho hinted that Pogba's arrival is imminent, and he also described Wenger and Klopp's comments as 'unethical'.

"I only speak about us," said Mourinho. "I heard already two of my colleagues from other clubs speaking about us. I do not like that. It is not ethical. There are things that when I do are not ethical and when others do it everything is normal, nobody says that. I do not speak about the others. They can do what they want. Our market was good.

"We made decisions, decide to bring four players not 10, that are Manchester United level. Four that we think can really improve the squad and not just be one more. This is the profile of our market.

"A young defender that needs time to be a top one but who has top potential. A creative player that we know the quality, a super striker, and we are going to get a very good midfielder. We try for balance. I am happy with my squad. I am happy with the effort of the club. The others it is their problem."

Eric Bailly, Zlatan Ibrahimovic and Henrikh Mkhitaryan are the three signings that United have completed so far this summer.