By BBC Sports
Sunderland have signed Atletico Madrid full-back Javier Manquillo on a season-long loan.
The Black Cats have the option to make the loan signing a permanent four-year deal at the end of the season.
The Spaniard, 22, spent the 2014-15 season on loan at Liverpool and made 19 first team appearances.
After leaving Liverpool, Manquillo spent last season on loan at Ligue 1 side Marseille, where he played 43 times, scoring three goals.