The Blues are back in the competition after a year out and enter as Europa League winners.
Joining Frank Lampard's side and last year's semi-finalists are Valencia and Lille in what appears to be a wide open group.
Fixtures (8pm KO unless stated)
September 17: Valencia (h)
October 2: Lille (a)
October 23: Ajax (a) - 17: 55
November 5: Ajax (h)
November 27: Valencia (a) - 17:55
December 10: Lille (h)
Frank Lampard's side will hope the minimal travel will work in their favour in their top four battle.