Manchester United interim manager Ralf Rangnick was far from from impressed with his side after their narrow win over Norwich City.
The Red Devils needed a late penalty from Cristiano Ronaldo to secure a 1-0 win over Norwich at Carrow Road on Saturday evening.
The German tactician was not happy with the players' body language and physicality against the Canaries.
"At half-time I told the boys we needed to increase the speed and intensity of the game," Rangnick told BBC Sport's Match of the Day.
"The second half was a little bit better but at the end we were lucky to have a clean sheet and there were two or three clean sheets by David de Gea.
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"It's another clean sheet but still a lot of work to do. The second half I was not at all happy with the amount of corners that we gave away, but we got the three points.
"We have conceded the highest amount of goals in the top 10. Now we have two clean sheets which is good but we still need to improve on that away, especially against physical teams or teams that attack high like Norwich did.
"It’s also a question of body language and physicality and this was one of the major issues that we could have done better."