Chelsea did here.Leading early through an Oliver Norwood own goal, the Blues made hard work of this one.And but for a woeful miss of the season contender from David McGoldrick it could have been a very different story.Rhian Brewster should have equalised too but hit the side netting when it looked easier to score.Few gave struggling Sheffield United a prayer, but after a poor first half in which they were thoroughly dominated, the Blades caused some problems.And Chelsea only survived the scare when Hakim Ziyech came off the bench to score a second in stoppage time.But Tuchel’s side are through to the semi-finals and they are now unbeaten in 14 matches under the German, who played a weakened team.It’s not always pretty, and at times this.
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