It may only have been five years ago, but it was a time when United were plying their trade in Sky Bet League One and playing in the early rounds of the FA Cup.
It was very much Sheffield United pre-Chris Wilder.
So, click through our photo gallery to see if you can see yourself or somebody you know.
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. Sheffield United fans take part in a minutes applause in remembrance of Alan Hodgkinson and Martyn Harrison - Sheffield United vs Coventry City - SkyBet League One - Bramall Lane - Sheffield - 13/12/2015 Pic Philip Oldham/SportImage -------------------- Sport Image 15/16 CONT Sheff Utd v Coventry 13 December 2015 ©2015 Sport Image all rights reserved
Twenty-one photos of Sheffield United fans in 2015. Photo: Philip Oldham/SportImage Photo: Sport Image
. Blades fans in 2015
United supporters get into the festive spirit during the game against Bradford City in December 2015. Photo: SportImage
. Blades fans in 2015
United supporters enjoy their pre-match fayre before the game with Bradford City at Bramall Lane in December 2015. Photo: SportImage
. Blades fans in 2015
United supporters enjoy some pre-match food ahead of the home game with Bradford City in December 2015. Photo: SportImage
. Blades fans in 2015
United supporters before the game with Bradford City in December 2015. Photo: SportImage
. Blades fans in 2015
United supporters watch their side entertain Bradford City in December 2015. Photo: SportImage
. Blades fans in 2015
A United supporter gets into the spirit of the occasion during the festive clash with Bradford City in December 2015. Photo: SportImage
. Blades fans in 2015
United fans before the home game with Coventry City in December 2015. Photo: SportImage
1. Blades fans in 2015
United supporters get into the festive spirit during the game against Bradford City in December 2015. Photo: SportImage
2. Blades fans in 2015
United supporters enjoy their pre-match fayre before the game with Bradford City at Bramall Lane in December 2015. Photo: SportImage
3. Blades fans in 2015
United supporters enjoy some pre-match food ahead of the home game with Bradford City in December 2015. Photo: SportImage
4. Blades fans in 2015
United supporters before the game with Bradford City in December 2015. Photo: SportImage