Chelsea boss Thomas Tuchel accused Newcastle of time-wasting after their 3-0 win.
Tuchel spent some of the first half tapping his watch as Newcastle tried to slow the game down and frustrate Chelsea.
It was a ploy that worked for two thirds of the game but the Blues finally made the breakthrough after the hour mark.
Nevertheless, it didn't stop Tuchel from getting a swipe in at United after the game.
Tuchel said: "There were many interruptions in the game and they were delaying the game.
"If you are the team relied on for the intensity it is not easy.
"We relied on a good structure.
"We worked on counter-pressing because then you can increase the risk around the box and we relied on the counter-pressing to protect us from counter-attacks.
"This was good in the first half, then we brought more bodies to the box and increased the risk in the second half."
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