Cristiano Ronaldo's penalty earned Manchester United a narrow victory over Norwich to maintain Ralf Rangnick's unbeaten start as interim manager.
Ronaldo sent Tim Krul the wrong way on 75 minutes after the Portuguese had been hauled down by Max Aarons on the edge of the six-yard box.
The Red Devils had offered little attacking threat before then, though Alex Telles hit the bar with a deflected free-kick during the first half.
They also had David de Gea to thank for two fine stops to deny Teemu Pukki and Ozan Kabak as Norwich put in a spirited display.
There was concern for Victor Lindelof when he was forced off during the second half holding his chest, though Rangnick said the Sweden defender had had tests and "seems OK".
The win moves Manchester United above Arsenal and Tottenham into fifth place. Norwich stay bottom on goal difference, three points from safety.
Rangnick later said: "It was an away game, a very physical intense game.
"I've told Dean [Smith] that Norwich didn't play like a bottom team. They played like we played against Crystal Palace.
"In the second half we had a better body language up front but we still allowed them to have chances.
"In the end it is David de Gea who won us the game.
"You have to be physically present, that was not always the case in all positions. We need to always be physically present.
"Some of our players are technical players. There was not so much space to be technical. You need to be more physical, this is not something we did in all positions. We need to raise our level of intensity.
"It's not only a question of individual players, it's how we play as a team. It's about winning first balls, second balls.
"Still, at least we got the three points, another clean sheet. But we need to improve also.
"Victor Lindelof had a collision, he can't even remember what it was. He was struggling to breathe. They have done all the tests and he seems OK."
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