Manchester United completed a Premier League double over their rivals Manchester City with a 2-0 win at Old Trafford.
Anthony Martial and Scott McTominay sealed the win with goals in either half.
Ole Gunnar Solskjaer's men have now moved up to fifth in the table - three points behind Chelsea, who thrashed Everton 4-0 at Stamford Bridge.
Third-placed Leicester take on Aston Villa on Monday, hoping to win their first game in the top flight since January.