United could not build on Saturday’s 5-2 trouncing of leaders Burnley and could barely get going all evening, falling to defeat thanks to skipper Ben Wiles’ calm first-half finish.
They did have the ball in the net in the first half, Enda Stevens’ goal being ruled out for offside, and Oli McBurnie had a good chance in the second half, but United couldn’t find a way past Millers goalkeeper Victor Johansson and were sentenced to defeat.
Here’s how we rated United’s players on an evening to forget at Bramall Lane, which also saw John Fleck limp off with injury in the first half ...
9. John Fleck 4
Made way early on for McAtee to give United another injury concern ahead of the World Cup break Photo: Andrew Yates
10. Ben Osborn 5
Began in midfield and finished at left-back as United changed shape. Full of industry as ever but couldn't find that bit of invention often enough to help break down a stubborn Millers defence. Had a good opening late on but just couldn't keep the ball under control from Khadra's pass Photo: Andrew Yates
11. Iliman Ndiaye 5
Much of the talk pre-game was how Rotherham would handle United's key man and they did so pretty comfortably, with the World Cup-bound youngster barely having a kick by his usual high standards. Still went to the very end to his credit but couldn't do it all on his own Photo: Andrew Yates
12. Oli McBurnie 6
Cut a frustrated figure as he struggled to see as much of the ball, and as many clear-cut chances, as he enjoyed against Burnley on Saturday. Got his head to one of Robinson's long throws but Johansson saved and held onto it, just about. Fashioned a good late chance which Johansson saved and stayed down in some discomfort Photo: Darren Staples