Leon Clarke produced a second-half masterclass by scoring four second-half goals to complete Sheffield United's comeback against Hull City.
Kamil Grosicki broke the deadlock on the half-hour mark with a fantastic long-range effort which gave The Tigers the lead going into half-time.
The win moves The Blades up into second in the Championship table, two points behind the leaders Wolverhampton Wanderers.
Hull keeper Allan McGregor was called into action early on, making a good save to keep out Billy Sharp's close-range shot after a cross from Enda Stevens caused problems for the visiting defence.