He played for Celtic, Galatasaray, Sunderland and Olympique Lyon respectively.
Jason Denayer’s contract with Lyon expired on 1 July.
Denayer, who played 20 games for Lyon last season, contributed 3 goals.
BEŞİKTAŞ TRANSFER NEWS: Jason Denayer attack from Beşiktaş! – Breaking Beşiktaş news
