Danny Drinkwater has been left out of Chelsea's Europa League squad.
The Englishman, signed for £35m from Leicester City last summer, missed out because Chelsea have too many FA-trained players.
The Blues kick off their campaign against PAOK on Thursday.
Full Europa League Chelsea squad:
1. Kepa Arrizabalaga
13. Willy Caballero
2. Antonio Rudiger
3.Marcos Alonso
21. Davide Zappacosta
24. Gary Cahill
28. César Azpilicueta
30. David Luiz
33. Emerson Palmieri
44. Ethan Ampadu
4. Cesc Fabregas
5. Jorginho
7. N'Golo Kante
8. Ross Barkley
10. Eden Hazard
17. Mateo Kovacic
22. Willian
11. Pedro
15. Victor Moses
18. Olivier Giroud
29. Alvaro Morata