Filip Ugrinic's late penalty gave Young Boys victory after the visitors looked to have saved a draw. Two Joël Monteiro goals book-ended the first half and the hosts might even have gone 3-0 up but Ebrima Colley hit the post.

The away side came back through substitute Michy Batshuayi, who scored with his first touch then struck again six minutes later. But Abdülkerim Bardakcı's handball in the box six minutes from time led to his dismissal and Ugrinic converted the spot kick to swing the game in favour of the Swiss team.

Key stat: Galatasaray have now lost their last four European away games, having been unbeaten in the previous ten.