On the pitch, Fernandez's performances this season haven't all been bad, but he certainly hasn't shown the level of consistency many would expect of a £107m player. Indeed, ahead of the trip to Man Utd he has lost his place in Maresca's so-called 'A team'.
Fernandez had been a starter in the early part of the season, aided by Romeo Lavia's five-week absence as a result of a hamstring injury suffered after an impressive showing on the opening day of the Premier League season against Manchester City. However, now Lavia is back to full fitness, Fernandez has been dropped.
The Belgian started the previous two league games against Liverpool and Newcastle, with Maresca tweaking his tactics in favour of more defensive solidity and in-form Moises Caicedo playing the role of the shuttling midfielder in the manager's preferred 4-3-3 shape, while Cole Palmer has, of course, been starring as a No.10. At present, it's hard to see how Fernandez fits.
He certainly hasn't been the creative force Chelsea would have hoped in 2024-25, and arguably since he signed; a deep-lying playmaker, Fernandez is yet to register a league goal or assist this campaign, and his pass completion percentage in the league is concerningly low at 80.7. Meanwhile, there are question marks over whether he has the stamina and physicality to be effective as a defensive midfielder.
The vast majority of Blues followers have backed Fernandez to the hilt in the belief that he will come good and become one of the best midfielders on the planet, with a damning recent statistical comparison of Chelsea's win rate with and without him (35% with, 81% without) swiftly rubbished. Patience, though, may soon run thin.