The Daily Mail reports that the Black Cats have been looking for a left winger for the past year.
Sunderland could struggle to seal a deal for Riera as the winger is currently earning £115,000-a-week at Turkish giants Galatasaray.
The Daily Mail reports that the Black Cats have been looking for a left winger for the past year.
Sunderland could struggle to seal a deal for Riera as the winger is currently earning £115,000-a-week at Turkish giants Galatasaray.
