While United displayed their strength in depth, Burton's nine changes was always likely to make life hard for the Sky Bet Championship side.
City's strong start to the season comes after the club spent over £200 million on new players during the close-season, with Benjamin Mendy, Bernardo Silva, Kyle Walker, Ederson and Danilo accounting for much of that expenditure.
The 21-year-old did finally get the goal he deserved and had Rashford to thank for after the English striker set him up with a smart pass from the outside of his boot.
A SECOND-string Manchester United side made light work of Burton to ease their way comfortably into round four.
"We didn't sit 10 men behind the ball as we didn't want to do that".
"Year-on-year, BT are closing the gap in regard to number of live games but the data shows that regardless of who you support, Sky are likelier to televise more of your team's matches". Everybody in attacking areas gave a good dynamic to the team and especially happiness.
City and United, now first and second in the Premier League, took contrasting routes to the last 16, where they were joined by Chelsea, Arsenal and Everton as the big guns advanced despite fielding weakened teams.
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Apple confirmed that its new Series 3 Apple Watch can encounter problems connecting to a cellular network. Gruber ultimately found the device useful and did not experience connectivity problems.
Claudio Yacob's second-half equaliser briefly threatened to take the tie into extra time and make a mockery of City's dominance after they nearly ran riot in the first half.
Mou's take on a competition that has run since the 1960-61 season came on a night when Manchester City, Chelsea and Arsenal all went through to the last 16 despite fielding under-strength teams.
"He is starting lots of times", Mourinho said of Martial.
Nobody pretends the competition is a priority, but it has never been so and doesn't need to be to remain worthwhile.
However, United were well worth the victory which sees them move into the fourth round, where they'll meet Swansea at the Liberty Stadium.