Man United on the verge of completing €45m deal for Chelsea midfielder following medical

Jose Mourinho has had a frustrating wait to secure United's third signing of the summer but he is about to be reunited with the Serbia midfielder with whom he won the Premier League title at Chelsea in 2014/15.

A fee was agreed with Chelsea on Saturday that allowed Matic, who turns 29 on Tuesday, to travel up to Manchester. He has been undergoing a medical with United on Sunday when the formalities will be completed.

It is thought the fee could reach as much as £45 million with add ons. United could make an announcement in the next 24 hours.

A picture of Matic wearing a United training top sporting the No. 31 vacated by Bastian Schweinsteiger has been doing the rounds on social media and is understood to be real.

United play Valerenga in Oslo on Sunday in their sixth pre-season match and Matic could make his debut against Sampdoria in Dublin three days later or, failing that, the European Super Cup against Real Madrid in Skopje a week on Tuesday.

Matic has been training alone at Chelsea's Cobham training ground in recent weeks after being left off the club's pre-season tour to the US amid uncertainty about his future and is likely to be some way short of match fitness.

Chelsea would have preferred to offload Matic overseas, with Juventus interested, but the player's preference was to move to Old Trafford and Roman Abramovich, the London club's owner, was willing to sanction the deal.

Matic had failed to agree a new deal at Stamford Bridge over the past year and the arrival of midfielder Tiemoue Bakayoko from Monaco for £39million this summer pushed him closer towards the exit door.

Mourinho has signed Belgium striker Romelu Lukaku from Everton for an initial £75 million and Sweden centre half Victor Lindelof has arrived from Benfica in a £30.7 million deal but the manager has been keen to bolster his midfield.

With Michael Carrick having just turned 36 and Ander Herrera not a classic holding midfielder, Mourinho wanted a recognised anchorman and he knows Matic well from his time with Chelsea, where the player has won two titles in the past three seasons.

Mourinho's first choice for the role had been Tottenham's Eric Dier but Spurs were steadfastly opposed to selling and United turned their sights to Radja Nainggolan and Matic as a result.

But Nainggolan was reluctant to leave Roma - the Belgian signed a new four year contract with the Italian club on Thursday - whereas Matic was keen to move to United.

Whether Matic's arrival triggers the departure of Marouane Fellaini from United remains to be seen. Galatasaray are reported to be in talks with the Belgium midfielder but there has been no confirmation from United at this stage.

Mourinho also wants to sign a winger but United have so far refused to meet Inter Milan's £49million asking price for Ivan Perisic and the Italian club have said they expect the Croatia winger to stay unless their valuation is matched.

United would prefer to bring in Gareth Bale, although any move for the Wales forward is likely to hinge on Kylian Mbappe joining the European champions from Monaco.

It is thought Real will need to raise more funds through sales to help fund a move for the France striker and Bale could be the most expendable of the array of superstar forwards at the Spanish giants.