And here we’ve dug deep into our picture archives to bring you these fantastic pictures from United’s proud past.
Our pictures include a match at Chelsea in 1912, an FA Cup semi-final with Burnley two years later – and a look at the Blades’ famous 1915 FA Cup final win against Chelsea.
We have action from a match with Arsenal in Sept 1935, a media briefing ahead of the 1936 FA Cup final and fans making their way to the big game.
There are also Blades players taking a beach stroll and an FA Cup semi-final against Bolton.
That, and plenty more great images, are here to take you down memory lane.
Share your great Blades memories, via our social media channels.

9. 1925 FA Cup Final preparations
Groundsmen mark out the touchline at Wembley Stadium in preparation for the forthcoming FA Cup Final between Cardiff City and Sheffield United. Photo: Getty Images

10. 1925 FA Cup final
The captains of Sheffield United and Cardiff City shake hands before the kick-off of the FA Cup final on 25th April 1925. The Blades went on to win the game 1-0. Photo: Getty Images

11. On the attack
Blades attack the Cardiff City goal during the 1925 FA Cup final at Wembley Stadium. Photo: Getty Images

12. Spurs v Blades - 1936
The Spurs goalkeeper deflects a goal bound shot with his fingertips from Sheffield player Jock Dodds, as Tottenham Hotspur play Sheffield United at White Hart Lane on 18th January 1936. Photo: Getty Images