Chris Wilder’s side was beaten by Newcastle at the St. James Park on Sunday early kick-off.
The Blades were reduced to ten men after John Egan collected his second yellow card after bringing down Joelinton in the 50th Minutes.
The Magpies concentrated on the one-man advantage and got the lead five minutes after as Allan Saint-Maximin took advantage of Enda Stevens’ missed clearance to score.
The second was scored when Matt Ritchie left-foot strike from the edge of the area, with his first goal of the season.
Newcastle record signing Joelinton taps home Miguel Almiron’s cross to make it a three-nil comprehensive win.