The Red Devils finished in second place in the Premier League table last term and without a trophy after Chelsea FC beat the Red Devils in the FA Cup final.
According to the UK Daily Mail, Mourinho's interest in Willian dates back to last winter transfers, but after making all the necessary arrangements', eggheads at the Stamford Bridge refused to sanction the move.
Whether Chelsea would be willing to stump up the cash needed to supplement a deal involving Willian remains to be seen but it seems like a deal that could work well for both clubs, if United can't find a buyer from overseas.
On the other hand, the Brazilian has 24 months left on his current deal at Chelsea.
Paul Manafort Spends First Night In Virginia Jail
Prosecutors argued on Friday that Manafort could continue to engage in alleged criminal activity if he is not jailed. Manafort's attorneys have accused prosecutors of conjuring a "sinister plot" out of "innocuous" contacts.
In north London, Unai Emery has been keeping busy, flicking back and forth between terrestrial TV channels so that he can feast on relentless red-hot World Cup action, and, when he gets a bit of downtime, telling his fringe players that they are free to exit the Emirates Stadium this summer.
'Of course (Fred can make an impact), no doubt about that. "He has a lot of qualities", the Chelsea player was quoted as saying before jetting off for the Mundial.
"Hi Gunners, it's Granit, I'm happy and proud to sign a new contract here for Arsenal", Xhaka said in a video message posted on social media.
United boss Jose Mourinho is eager to undertake a total overhaul of his under performing squad over the summer, where he hopes sweeping changes can be made in one hit with the Italian outfit as United are hopeful of thrashing out deals for Mario Mandzukic, Sami Khedira and Alex Sandro.
Maddison was looking to stay in the Midlands region where he grew up and hence chose to join the 2015/16 Premier League champions.