Niguez has spent his entire senior career at Atletico but has been weighing up a fresh challenge away from the Spanish capital.
The 26-year-old won his first La Liga title last month as Atletico held off Real Madrid and Barcelona but was not an automatic starter under Diego Simeone last season. Niguez was also subbed off during crucial games during the season run-in, failing to play the full 90 minutes in their final seven fixtures.
Marca report that has reaffirmed Niguez’s decision to leave the Wanda Metrpolitano this summer with United among the clubs interested.
The Spaniard has been tipped as one possible replacement for Paul Pogba with the midfielder set to enter the final year of his contract with no new deal agreed.
Juventus are also keen on Niguez but the player would prefer a move to United, according to The Mirror.
Niguez has a buyout clause of around £60million, but it is said Atletico will listen to offers closer to the £40m mark.
Atletico meanwhile are keen to strengthen their squad off the back of last season’s success and hope any funds raised from Niguez’s sale can help fund a move for a new striker to play alongside Luis Suarez.
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