Manchester City rode their luck in beating Crystal Palace 1-0 to move provisionally top of the Premier League, while Manchester United won by the same score at Norwich to stay in the title picture on Saturday.
The Manchester giants dipped into their reserves for a second game in three days and produced disjointed displays that were rescued by second-half winners.
Edin Dzeko's 66th-minute goal maintained City's record of scoring in every home game in more than three years - a run of 60 matches - and lifted the team two points above Arsenal, which plays Newcastle on Sunday.
Danny Welbeck was United's goalscorer in the 57th at Carrow Road, earning the champions a fourth straight league win.
Hull thrashed struggling Fulham 6-0 and West Ham drew with West Bromwich Albion.