The scoreline was harsh on Lampard’s men, who were good value in the game until the hour mark of the eagerly anticipated contest.
In turn, United recorded their biggest Old Trafford win over Chelsea since 1965.
Marcus Rashford scored twice, either side of a close-range effort from Anthony Martial, before substitute Daniel James completed the scoring with a goal on his debut nine minutes from time.
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So what did we make of the Chelsea players? Find out the player ratings below…