Vitoria Setubal defender Frederico Venancio is attracting Premier League interest.
Sunderland, reports The Sun, have asked Vitoria Setubal about a price for the Portugal international.
Venancio attracted enquiries from Sunderland after last week's friendly in Portugal.
The 21 year-old had a year with Benfica before returning to Vitoria to complete his apprenticeship.
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