Sheffield United reclaimed top spot the Championship with an efficient victory at the MKM Stadium to end Hull City's perfect home record.
Oli McBurnie put the energetic Blades ahead when his 20th-minute drive squirmed through the hands of Tigers goalkeeper Matt Ingram at the near post for his third goal in as many games.
In-form Oscar Estupinan was denied twice by Wes Foderingham after he was sent clean through before Ozan Turfan lobbed on to the roof of the net as Hull failed to make the most of their chances to level.
The Blades made sure of the points in a largely scrappy second half when Sander Berge's deflected shot 16 minutes from time beat a helpless Ingram.