Manchester United have made an enquiry for Bayern Munich defender Niklas Sule, reports in Germany say.
United are on the search for defensive reinforcements for a second summer transfer window, and have been linked with the likes of Kalidou Koulibaly, Matthijs de Ligt, Toby Alderweireld and Harry Maguire.
They were also said to be interested in Sule's Bayern teammate Jerome Boateng last summer.
However, a new name has now emerged, as Sport1 say United have identified Sule as a potential target and have lodged an enquiry about his availability.
Sule, 23, joined Bayern in 2017, and has gone on to establish himself as first choice in the Bundesliga leaders' defence, while he has started all but one of Germany's fixtures since the World Cup.
Sule would not come cheap, though, as he cost Bayern £21m from Hoffenheim two years ago, and still has three years remaining on his contract.
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Meanwhile, Sporting reportedly want to offer rumoured United target Bruno Fernandes a new contract that will increase his release clause.
United have been linked with the exciting midfielder, but Calcio Mercato say his club are looking to seal the new deal thatw ill see his release clause increase from €100m to €150m.
The report also says AC Milan are interested in Fernandes, who they say is also being monitored by Juventus, PSG and United.
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