Benfica president Luis Filipe Vieira is in London for talks with Sunderland officials regarding Eduardo Salvio, according to reports from Record.
The Argentine ace has emerged as a target for the Black Cats of late after he helped the Lisbon giants to the Primeira Liga title last term.
Sunderland have endured a quiet summer on the transfer front so far, with Sam Allardyce’s exit to take the England managerial position and David Moyes’ subsequent arrival having made it tricky for the North East side to push through deals.
However, reports claim that that could be about to change soon, with talks regarding Salvio underway in London.
Vieira is understood to have travelled to the English capital to hold discussions with his Sunderland counterparts, with a €25m (£21.2m) valuation on the attacking midfielder.
As well as Salvio, the Wearside club are also keen on former Newcastle winger Charles N’Zogbia.