It remains to be seen whether a reunion with Mourinho or the chance to play alongside Messi convinces the 29-year-old to end his five-year stay at Stamford Bridge.
'People speculate a lot.
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Since his time as Chelsea boss, Jose Mourinho has been an admirer of Brazil global Willian, and he feels he should sign him for the Red Devils this summer.
His performances have attracted interest from United and Barcelona, but TMW claim the Premier League club are lining up a substantial bid to secure his services.
According to the report, Argentina star Messi and Uruguay striker Suarez want a complementing player who can deliver the ball quickly into the centre of the pitch from the wing so they can do their thing.
The two sides meet in Kazan on Friday and Willian, who counts Hazard as a friend at the cosmopolitan Stamford Bridge, said there will be no mercy.
While Neymar has been dominating the headlines throughout the tournament, it is arguably Coutinho who has been Brazil's star man.
And the Blues will face an even more hard task of keeping hold of their star players with many top European suitors keen on luring the Chelsea players away from Stamford Bridge.