The Portuguese endured one of the heaviest defeats of his managerial career - and certainly the most surprising - as his Roma side were thrashed 6-1 by Bodo/Glimt in the Europa Conference League.
Roma trailed just 2-1 at the break after the Norwegian champions struck through Erik Botheim and Patrick Berg's curler, while Carles Perez replied with a clinical effort.
Mourinho made three changes at the start of the second half and another two on the hour mark after Bodo/Glimt added a third with Botheim tapping in from close range.