Away from Manchester United’s disappointing late draw with Anderlecht in Belgium the headline of the night in the Europa League came from Lyon, as the Ligue 1 side’s game with Besiktas was delayed due to crowd trouble.

The sets of fans clashed as projectiles and firecrackers were thrown from the upper tiers onto the lower tiers causing fans to run onto the pitch to shelter from the missiles.

When the game finally got underway – 45 minutes late – former Liverpool striker Ryan Babel gave Besiktas the lead in the 15th minute before Corentin Tolisso levelled things up in the 83rd minute.

And, a minute later, Jeremy Morel turned the score on its head to give Lyon a 2-1 advantage to take to Istanbul.

Elsewhere Ajax ran away 2-0 winners against Schalke at the Amsterdam Arena thanks to two goals from captain Davy Klaassen.

The first came from the penalty spot as the Dutchman scored in each half, leaving Ajax’s German opponents with an uphill battle next week.

And in the final game of the night, there is all to play for in the second leg as Celta Vigo won 3-2 against Genk in Spain.

Fans clash at Lyon vs Besiktas Show all 7 1 /7 Fans clash at Lyon vs Besiktas Fans clash at Lyon vs Besiktas Besiktas' and Lyon's supporters fight in the tribune before the UEFA Europa League first leg quarter final football match between Lyon (OL) and Besiktas on April 13, 2017, at the Parc Olympique Lyonnais stadium in Decines-Charpieu, central-eastern France. / AFP PHOTO / PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images) AFP/Getty Images Fans clash at Lyon vs Besiktas Besiktas' and Lyon's supporters fight before the UEFA Europa League first leg quarter final football match between Lyon (OL) and Besiktas on April 13, 2017, at the Parc Olympique Lyonnais stadium in Decines-Charpieu, central-eastern France. / AFP PHOTO / PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images) AFP/Getty Images Fans clash at Lyon vs Besiktas Besiktas' fans gesture and shout against Lyon's fans as they stand in the tribune before the Europa League football match Olympique Lyonnais against Besiktas JK on April 13, 2017 at the Parc Olympique Lyonnais stadium in DÃ©cines-Charpieu near Lyon, southeastern France. / AFP PHOTO / PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images) AFP/Getty Images Fans clash at Lyon vs Besiktas A Lyon supporter holds a flag after entering the pitch before the UEFA Europa League first leg quarter final football match between Lyon (OL) and Besiktas on April 13, 2017, at the Parc Olympique Lyonnais stadium in Decines-Charpieu, central-eastern France. / AFP PHOTO / JEFF PACHOUD (Photo credit should read JEFF PACHOUD/AFP/Getty Images) AFP/Getty Images Fans clash at Lyon vs Besiktas People stand on the field as Besiktas' and Lyon's fans fight in the tribune before the UEFA Europa League first leg quarter final football match between Lyon (OL) and Besiktas on April 13, 2017, at the Parc Olympique Lyonnais stadium in Decines-Charpieu, central-eastern France. / AFP PHOTO / PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images) AFP/Getty Images Fans clash at Lyon vs Besiktas Police stand on the pitch after Besiktas' and Lyon's supporters fought before the UEFA Europa League first leg quarter final football match between Lyon (OL) and Besiktas on April 13, 2017, at the Parc Olympique Lyonnais stadium in Decines-Charpieu, central-eastern France. / AFP PHOTO / JEFF PACHOUD (Photo credit should read JEFF PACHOUD/AFP/Getty Images) AFP/Getty Images Fans clash at Lyon vs Besiktas French police stand guard after clashes between supporters before the UEFA Europa League first leg quarter final football match between Lyon (OL) and Besiktas on April 13, 2017, at the Parc Olympique Lyonnais stadium in Decines-Charpieu, central-eastern France. / AFP PHOTO / JEFF PACHOUD (Photo credit should read JEFF PACHOUD/AFP/Getty Images) AFP/Getty Images

Genk took the lead in the 10th minute through Jean-Paul Boetius but found themselves behind seven minutes later after goals from Pione Sisto and Iago Aspas.