He remains on the fringe of the first-team and some way off becoming an established regular, but Mourinho appears to admire him - partly for his particular skillset, but mostly for the quiet and dignified way he responded to the jeers.
Romelu Lukaku eventually got his goal late on to make sure of the win.
But on Saturday it was especially long for Joel Ward after the Englishman tore him apart from as early as the third minute when he left the Palace man for dead before laying on Juan Mata’s opener.
The Englishman looks to have finally settled on the left of that front three with Mourinho admiring his industrious workrate over Martial’s attacking nous.
These were not original criticisms but in those early days, even Fellaini would admit, they were often fair.
Certainly, his penchant for elbowing opponents in the face did not go down as well with supporters as you might think, despite the strange tendency for Liverpool and Manchester City players to be on the receiving end.