New signing Joao Felix was sent off on his debut as Chelsea's woes continue after they fell to a 2-1 defeat to Fulham in a London derby encounter on Thursday.
Arsenal claimed the bragging rights in the London derby after beating Chelsea, while Liverpool bounced back with a win against Tottenham Hotspur in Sunday's action of the Premier League.
Watch as Kai Havertz and Ben Chilwell inspire Chelsea to fight back and secure a 2-1 victory over London rivals West Ham United at Stamford Bridge on Saturday afternoon.
Gabriel made amends for a dreadful error by scoring the winner in a 2-1 victory at home to Fulham on Saturday as Arsenal won their fourth straight game to start the Premier League season.
Should Christian Romero have received a red card for pulling Marc Cucurella's hair during an incident shortly in Chelsea's Premier League clash against rivals Tottenham Hotspur?
Watch as Thomas Tuchel and Antonio Conte were shown red cards as things got heated on the touchline after a dramatic 2-2 draw between Chelsea and Tottenham Hotspur.
Watch as Senegalese defender Kalidou Koulibaly score his first goal for Chelsea with a sensational volley against Tottenham Hotspur.
Eddie Nketiah boosted Arsenal's bid for a top-four finish in the Premier League as the striker's double inspired a dramatic 4-2 win against Chelsea on Wednesday.
Eddie Nketiah boosted Arsenal's bid for a top-four finish in the Premier League as the striker's double inspired a dramatic 4-2 win against Chelsea on Wednesday.
Son Heung-min fired Tottenham to a crucial 3-1 win against West Ham as the South Koreans double lifted his side within three points of the Premier League's top four on Sunday.