Nyon - Arsenal will face Napoli in a clash of two of the favourites to win the Europa League after being drawn together on Friday.
The Gunners' London rivals Chelsea will take on Slavia Prague, while near-neighbours Valencia and Villarreal will face off in an all-Spanish tie.
The two Premier League sides could now meet in May's final in Baku after being place in opposite sides of the semi-final draw.
?? The quarter-finals draw in full ??
— UEFA Europa League (@EuropaLeague) March 15, 2019
Most exciting game? ??#UEL | #UELdraw pic.twitter.com/W3OBTlHM3U