Jason Denayer (born 28 June 1995) is a Belgian professional footballer who plays as a centre-back for Premier League club Sunderland on loan from Premier League club Manchester City. He made his professional debut while on loan at Celtic, being named the PFA Scotland Young Player of the Year after helping them win the Scottish Premiership and Scottish League Cup. He then spent the following season on loan at Galatasaray, helping them win the Turkish Cup.