News of the World says the 33-year-old has impressed Sunderland manager Steve Bruce during a trial at the Stadium of Light.
The former Marseille, Barcelona and Liverpool star will sign a contract until the end of the season.
News of the World says the 33-year-old has impressed Sunderland manager Steve Bruce during a trial at the Stadium of Light.
The former Marseille, Barcelona and Liverpool star will sign a contract until the end of the season.
