There are 32 teams left in the quest for two spots at the Olympic Stadium in Baku, Azerbaijan, one of which will earn an automatic spot in the 2019-20 UEFA Champions League.
[ MORE: Europa League wrap ]
The intrigue in the field took a hit when Rangers and AC Milan failed to advance, meaning there will not be an Old Firm Derby or Milan Derby inside of UEL play.
And Maurizio Sarri’s last two clubs, Napoli and Chelsea, are seeded for the Round of 32 draw, so they will not meet for at least one more round.
Both Chelsea and Arsenal can draw anyone from the group of unseeded teams, with no English teams in the field. Arsenal-Celtic? Chelsea-Lazio?
Seeded teams
Bayer Leverkusen
Red Bull Salzburg
Zenit Saint-Petersburg
Dinamo Zagreb
Arsenal
Real Betis
Villarreal
Eintracht Frankfurt
Genk
Sevilla
Dynamo Kiev
Chelsea
Napoli
Valencia
Inter Milan
Benfica
Unseeded teams
Zurich
Celtic
Slavia Prague
Fenerbahce
Sporting Lisbon
Olympiacos
Rapid Vienna
Lazio
Malmo
Krasnodar
Rennes
BATE Borisov
Viktoria Plzen
Club Brugge
Shakhtar Donetsk
Galatasaray