The two sides battled to a scoreless draw two weeks ago in the first leg in Seville and it was clear from the start of Tuesday's contest that United coach Jose Mourinho would stick with the same approach -- concede possession and wait for chances on the counter, Efe news reported.
But the visitors went for broke, determined to get into the next phase after going out of the tournament in the round of 16 on their last three occasions.
Mourinho's tactics looked like paying off in the first minute in front of 74,000 at Old Trafford, as Romelu Lukaku powered past Sevilla defender Kjaer and menaced the opposing goal.
Rico had to be sharp again at the start of the second half to bat away a shot from Jesse Lingard as United began showing more ambition.
Ben Yedder etched his name in the history of "the theatre of dreams" the first time he touched the ball, taking a pass from Sarabia and eluding Bailly to put the ball just inside David De Gea's post to make it 1-0 for Sevilla.
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