Sunderland have announced the signing of Jason Denayer on a season-long loan deal from Manchester City.
The 21-year-old joined the Man City youth team in 2013, but is yet to make a senior appearance for the club.
The Belgium international has spent the last two seasons out on loan, first with Celtic in 2014-15 before moving to Galatasaray last term.
The defender will now spend a third consecutive campaign away from the Etihad Stadium, joining Sunderland for the 2016-17 campaign.
Denayer, who won the Scottish PFA Young Player of the Year award during his time at Celtic, becomes David Moyes's eighth signing of the summer at the Stadium of Light.