Our skipper touched in Patrick Chinazaekpere Dorgu's header to hand the Reds an early lead against 10-man Chelsea, after keeper Robert Sanchez was sent off.
The Portugal international had a nervous wait while the VAR made a lengthy check on a possible offside infringement, before referee Peter Bankes pointed to the centre-spot.
Our no.8 becomes the 23rd player in our history to reach three figures for goals, moving one ahead of another of our great midfield captains in Bryan Robson.
He is now level with Joe Cassidy and George Wall in the all-time list.
After joining from Sporting in his homeland in 2020, Fernandes has been a shining light for United.