The game was delayed by 45 minutes after Turkish fans threw objects and began attacking people in the stands, forcing hundreds of Lyon supporters to flee on to the pitch.
First Tolisso got on the end of a deflected Mathieu Valbuena free kick, then Jeremy Morel pounced on a howler from Besiktas goalkeeper Fabri.
The hosts were unlucky, rattling the woodwork twi在线外围投注ce with Corentin Tolisso and Nabil Fekir.
Once the match began, veteran Ryan Babbel broke the deadlock just 15 minutes in with an angled drive.
The second legs will be played on April 20.
Anderlecht grabbed a late equaliser against Manchester United, Ajax saw off Schalke, Celta Vigo won a Genk thriller and Besiktas shook Lyon网上21点 both on and off the field.
Manchester United are the favourites to win 线上足球投注the tournament and seemed to be coasting to a victory in Belgium, but Anderlecht snatched a late goal with Leander Dendoncker’s bullet header for the 1-1 result.
Olympique Lyonnais knocked Roma out of the Europa League by recovering from a trailing situation to win at home and they did it again with Besiktas.
Celta Vigo completed an impressive comeback in their 3-2 thriller with Genk, which also leaves qualification wide open.
Just as it seemed to be over, Lyon managed to turn the game around completely with two goals in the space of two minutes.
The first legs of the Europa League quarter-finals were played this evening and there were quite a few surprises.
Ajax swept Schalke 04 aside 2-0 thanks to a brace from Davy Klaassen, but it could’ve been a lot worse, as the hosts also hit the woodwork twice.