By Sedara Oluwadara
Sheffield United were denied the chance to go top of the Championship after South Yorkshire rivals Rotherham triumphed at Bramall Lane for the first time in 42 years.
Ben Wiles scored the decisive first-half goal after Chiedozie Ogbene drifted into the box and found the Millers captain unmarked to coolly turn the ball home.
Enda Stevens had the ball in the back of the net before the break as the Blades searched for a leveller, but the scrambled effort was ruled out for offside.
Viktor Johansson kept a fierce John Egan shot out early in the second half and dealt with a late Oli McBurnie effort, while substitute Billy Sharp also headed wide for a Blades side that failed to take anything from a game they dominated.
