Sheffield United 2 Manchester City 1: Under-fire Sheffield United boss Bryan Robson conjured arguably one of the sweetest results of his career as the Blades took a second Premier League scalp in this season's FA Cup.

Former Manchester United captain Robson saw his side clinch a place in the fifth round after holding onto a first-half lead courtesy of goals from Luton Shelton and Jon Stead.

Rising teenage star Daniel Sturridge gave City hope with a stunning volley three minutes after his arrival as a half-time substitute, but United were barely troubled beyond that.

For Robson, the victory will have come as a major relief as there had been rumours this week his job was on the line following last weekend's 2-0 derby defeat at Sheffield Wednesday.

But if there was any suggestion his team did not want to play for him, that was blown away by this performance, and the first half in particular.

It will have had most United fans wondering just why their team has performed so miserably on occasions in the Championship this season.