Eric Bailly Leave Manchester United for Besiktas. Manchester United's Eric Bailly Departs for Besiktas Eric Bailly, the 29-year-old Ivorian defender, has officially left Manchester United to join Turkish Super Lig side Besiktas on a permanent transfer. Bailly's departure marks the end of a six-year tenure at Old Trafford. Bailly's journey with Manchester United began in 2016 when he was signed by then-manager Jose Mourinho. He made an immediate impact, winning the Community Shield on his debut as United defeated Leicester City 2-1 at