Manchester United reportedly shelved their attempt to sign Sporting Lisbon midfielder after an assessment from their scouting team.
Having been linked with a switch to Old Trafford throughout the summer, Fernandes was expected to complete a big-money transfer before the end of the window.
However, United eventually decided against a deal for the Portugal international, with it being assumed that the clubs remained far apart in their respective valuations.
However, according to the Daily Mail, scouts felt that the 24-year-old would not fit in with Ole Gunnar Solskjaer's style of play.
The report adds that it was perceived that the playmaker took too many risks with the ball, something which Solskjaer is keen to avoid in the future.
Aside from seeing Ander Herrera sign for Paris Saint-Germain, United have kept the same options in central midfield as the last campaign.