And after two promotions in that time, Clarke waved an emotional goodbye to Bramall Lane earlier this week in a statement on his Instagram account. The former Wolves man scored 29 league goals for the Blades – so we had a look back through our archives to pick 11 of our favourites.
Let us know which is your favourite … there’s one clear favourite!
5. v Wolves, 2017
Another brace against the best team in the Championship that season, by a country mile. Two good poacher's goals helped cap a memorable week for both player and club Photo: Simon Bellis
6. v Hull, 2017
The start of a four-game run in November that brought a remarkable NINE goals. Clarke became the first Blade to score four in a game since Keith Edwards in 1983 Photo: Simon Bellis
7. v Burton, 2017
A possibly underrated goal, on the night that Paul Coutts broke his leg and United's season was derailed. Fleck's cross from the left was low, but Clarke adjusted his body to angle a header into the back of the net and send United top of the league Photo: Mike Egerton
8. v Fulham, 2017
Another November hat-trick but this time in defeat, after a remarkable 5-4 defeat to Fulham at Bramall Lane. His second, driving at his marker before scoring on his left foot from a tight angle, was the pick of the bunch Photo: Simon Bellis