Manchester City took advantage of Liverpool's late kick-off at Chelsea on Saturday to move top of the Premier League as Manchester United slumped to a third defeat in seven league games, 3-1 at West Ham.

United now trail their city rivals by nine points in 10th and could trail Liverpool by 11 should Jurgen Klopp's men continue their 100 per cent record at Stamford Bridge. City showed the gulf in class between both sides of Manchester as Brighton, who beat United earlier this season, were comfortably seen off at the Etihad 2-0 thanks to goals either side of half-time from Raheem Sterling and Sergio Aguero.