On his home bow against Wolves, the 25-year-old delivered a composed Man of-the-Match display and, last Monday, Fernandes produced his first assist – a vicious, precise corner-kick for Harry Maguire's header – to help seal a vital win over top-four rivals Chelsea at Stamford Bridge.
An eye-catching cameo in the Europa League draw with Club Brugge in Belgium followed, before another award-winning performance against Watford at the weekend - which yielded his first goal for the club, as well as a big hand in the other two goals.
But how did Fernandes make his name in Lisbon?