The Under 18 side's unbeaten run goes on, with the youth team earning a hard-fought 1-0 win over United in Saturday morning's derby.
A close first half gave way to a second period dominated by City, but it was not until late on that Ahmed Benali struck to put City ahead. There was still time for Joe Clegg to ensure all three points with a fine save in stoppage time.
City are still on top of Group C in the Premier Academy League, six points ahead of United, with 13 wins and four draws this season.
