Arsenal moved to the top of the Premier League standings after claiming a 2-1 victory over Brentford at the Emirates Stadium on Saturday evening.
Mohamed Salah scored on his return from injury as Liverpool defeated Brentford 4-1 to maintain their lead at the top of the Premier League.
Phil Foden scored a hat-trick to fire Manchester City into second place in the Premier League standings following their 3-1 win over Brentford.
Tottenham Hotspur moved back into the Premier League top four after a thrilling 3-2 victory over Brentford at the Tottenham Hotspur Stadium on Wednesday evening.
Mohamed Salah scored twice as Liverpool cruised to a comfortable 3-0 victory against Brentford at Anfield in the Premier League on Sunday.
Brentford became the first side in the Premier League era to win their first three matches at Stamford Bridge following their 2-0 victory over a wasteful Chelsea in the West London derby.
Two stoppage-time goals from Scott McTominay saw Manchester United come from behind to secure a 2-1 victory over Brentford at Old Trafford in the Premier League on Saturday.
Arsenal have completed the signing of Brentford goalkeeper David Raya on an initial £3m loan deal with a £27m option to buy next season.
Liverpool closed to within one point of fourth-placed Manchester United as Mohamed Salah's decisive goal was enough to secure the Reds' sixth consecutive win in the Premier League.
Frank Lampard admits that the club's supporters have every right to boo the team after they suffered a fifth successive defeat to Brentford at Stamford Bridge on Wednesday.