Marcos Angeleri's agent is set to discuss Sunderland's bid for Marcos Angeleri with Estudiantes in the coming days.
Black Cats boss Steve Bruce is mulling over his right-back options having been put off Tottenham's asking price to secure Alan Hutton permanently.
Hutton spent the second half of the season on loan, but Spurs are unwilling to lower their estimated £9million valuation for the full-back.
Bruce has now turned his attention to Argentina international Angeleri, who could cost $2.8million (£1.9m) according to South American reports.
The 27-year-old, who missed out on the World Cup this summer due to injury, could now be set for a Premier League move this summer.
"In the next few days I'll be meeting with Estudiantes' officials to let them know about Sunderland's proposal," explained Pires.
"If they agree to transfer the player for the amount that's being offered I'll travel to England to meet with Sunderland's board members."