While the Portuguese and his staff are currently weighing up their plans ahead of what should be a very busy close-season window as they seek to catch up with champions Manchester City, Mourinho has long been certain that he wants to further bolster his midfield.
A passer to succeed from Michael Carrick is seen as essential in order to speed up the side's attacking, with Real Madrid's Toni Kroos the ideal target, but Jorginho is seen as a greatly adept and more viable alternative.
The 26-year-old has been supreme in Napoli's title challenge this season, having gone from strength to strength since joining the club from Verona in 2014.
United also retain an interest in Borussia Dortmund's Julian Weigl, Shakhtar Donetsk's Fred and Valencia's Carlos Soler, and Mourinho wants to bring in two midfield players, especially with Marouane Fellaini set to leave on a free contract at the end of the season.
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