Manchester City felt the absence of star midfielder Rodri as the Premier League champions were held to a damaging 1-1 draw at Newcastle, while Cole Palmer scored four times in Chelsea's 4-2 win against Brighton on Saturday.City's second successive draw in the league was especially frustrating as Arsenal moved level on points with them with a last-gasp 4-2 win against Leicester a few hours later.
The hosts scored in the first minute again but West Ham fought back for a point to maintain their unbeaten away record
The Foxes had come from two goals down to level.