The Spanish international was called to lead the line as Maurizio Sarri named a second-string for their final Europa League group match with qualification already secured.
But the misfiring frontman's night came to an early end moments before the break.
Morata, 26, was replaced by Olivier Giroud after suffering what the Blues' Twitter account described as a knock.
Usually the sight of your striker going off injured would have fans sweating, but the Chelsea faithful seem to feel quite the opposite about the £65m frontman.
In fact, a number of them seemed to be celebrating the £160,00-a-week ex-Real Madrid man was injured on social media.
Twitter user @Anton_Kay wrote: "Morta injured! Good news."
And one even described it as an early present from Santa as @KingDika_ said: "Morata injured?… My Christmas is made already."
Another called @maticc1 said: "Morata injured. It's a necessary evil I guess."
And @FrankieGraulund said: "Morata simply doesn't care. Plays the victim card during games, and basically a waste of space. Needs to be sold."
Meanwhile some are hoping it could force Chelsea into the transfer market next month.