On how United stars have been getting to grips with the system change, Fernandes told TNT Sports: "Me and H (Harry Maguire) have been here for a while already, so we know we have to stick with what we've been training, what we've been trying to do, what we're supposed to do.
United fell behind after just four minutes last night, when Omari Hutchinson profited on an awful mix-up between Patrick Dorgu and Andre Onana to score.
Then, after United had recovered to lead 2-1, Dorgu saw a straight red card for a poor challenge on Omari Hutchinson.
The Red Devils subsequently drew level through Sam Morsy's own goal, with Matthijs de Ligt bundling home to give them the lead on 26 minutes.
A major cock-up from Patrick Dorgu and Andre Onana saw Ipswich take a third-minute lead through Jaden Philogene.
