Sterner tests await Chelsea in Europe but they made a winning return to the Champions League and may have discovered a new cult hero.
Davide Zappacosta marked his home debut with an outrageous goal, which was, in truth, probably a fluke, but lifted Stamford Bridge and sank Qarabag.
Never mind Diego Costa, still AWOL, presumed to be in Brazil, all hail Zappacosta with his striking surname and apparent mastery of the cleverly-disguised cross.
His goal was the second of the night and he created the sixth for Michy Batshuayi to bundle in at the near post.