Former Tottenham defender Vedran Corluka is being lined up for a return to the Premier League.
The Daily Mail says Corluka is a target for Sunderland.
The 28-year-old is playing for Lokomotiv Moscow but is keen on a return to the Premier League and the Russian club are happy to sell for around £4.8million.
Corluka can play at centre-back and full-back and has over 75 caps for Croatia. His experience of the Premier League also makes him a safer option in many manager's eyes and Gus Poyet is keen to discuss a potential deal.
