Manchester United will host bitter city rivals Manchester City in the headline fixture of the English Football League fourth round, the draw on Wednesday night revealed.
The two met at Old Trafford less than two weeks ago with City winning 2-1.
The tie will be another instalment in the Jose Mourinho versus Pep Guardiola clashes after both met several times in Spain.
In other all-Premier League ties in the fourth round, West Ham will host Chelsea, while Liverpool will welcome Tottenham.
Chelsea have beaten West Ham in the league at Stamford Bridge this season, and Liverpool drew with Tottenham at White Hart Lane.
Arsenal will host Championship side Reading.
Fourth round fixtures
West Ham v Chelsea
Manchester United v Manchester City
Arsenal v Reading
Liverpool v Tottenham
Bristol City v Hull
Leeds v Norwich
Newcastle v Preston
Southampton v Sunderland