Third round
Aston Villa
Bnei Sakhnin
Braga
Chernomorets Burgas
Deportivo
Elfsborg
FK Rīga
Grasshoppers
Honvéd
NAC
Napoli
Neftçi
OB
Panionios
Rennes
Rosenborg
Saturn
Sivasspor
Sturm
Stuttgart
Tavriya
Vaslui
Clubs eliminated in second round
- Besa
- Bohemians
- Ekranas
- Etzella
- Germinal Beerschot
- Gorica
- Grbalj
- Hibernian
- OFK
- Renova
- Shakhtyor Soligorsk
- Teplice
- Tiraspol
- TPS
