But could United be about to sacrifice Marcos Rojo as they look to add quality to their backline this summer?
It Manchester United want Kalidou Koulibaly from Napoli this summer, they are going to have to pay through the nose.
Not only will United have to cough-up a nine-figure fee to sign the defender, but they will have to shatter their transfer record in the process.
It will take £110million to make Napoli consider letting Koulibaly leave.
In January, Old Trafford bosses thought a deal could be done at around £80m.
But according to the Sunday Express , nothing is happening unless any club meets their asking price.
Napoli coach Carlo Ancelotti reaffirmed two weeks ago that the player is staying put.
He said: “I have a team that is already well structured and with margins for growth, even if young. In pivotal roles we are in place, the backbone is robust: two valuable goalkeepers, a reliable defence with a phenomenon like Koulibaly, the well-structured midfield.
“They are destined to grow, with targeted investments made in harmony with the club. The big names will all remain, Napoli is not forced to sell and make capital gains.”
Ole Gunnar Solskjaer knows he has sign a centre-back this summer and may sell to fund it.
Marcos Rojo, 29, may be the player to make way and it’s understood United could be willing to listen to offers.
The manager knows a clear-out is needed at Old Trafford.
He said: “It’s going to be survival of the fittest or survival of the best – that’s how ruthless we have to be.
“We need players here who are going to be able to take us forward.
“That means the culture in the dressing room and what we do every single day here to make us challenge again.”
United have money to spend but are also said to be wanting to add to their attack once the season has come to an end.