It is a journey that boss Chris Wilder made 30 years ago, when United went to Filbert Street and won 5-2 to seal promotion to the First Division. But what happened to the United side that day?
5. David Barnes
A former England youth international, left-back Barnes was a popular player at United. He later played for Watford and Colchester United, before injury forced him into retirement Photo: Peter Tuffrey
6. Paul Wood
Joined United from Brighton and made 28 appearances before following Morris to the south coast with Brighton. Regularly turned out for United's Masters team after he retired Photo: Peter Tuffrey
7. Wilf Rostron
Remarkably joined United on loan from Wednesday in 1989, a move which was later made permanent. After helping United into the top flight, he moved to Brentford and set up his own furniture business after retirement Photo: Peter Tuffrey
8. Bob Booker
Captained the Blades on that memorable day at Leicester and later played in the top flight, after being written off and close to retirement during his time at Brentford. Now a driving instructor on the south coast Photo: Chris Holt