Three talking points from the Premier League

1. Manchester City secured a three-point lead at the top of the Premier League following a 3-0 victory over Sunderland. Despite themselves conceding three goals, City's attacking prowess proved too much for the Black Cats, who have now lost their last three matches.

2. Arsenal's perfect start to the season suffered a significant setback with a 3-0 loss to Brighton. The Gunners, tipped to win the title due to their smart squad building and strong opening run, struggled to cope with Brighton's high press and defensive lapses. Manager Mikel Arteta acknowledged the need to learn from the defeat, which represents Arsenal's worst loss in over three years.

3. Chelsea's promising start under manager Xabi Alonso came to an end with a 3-0 defeat to Brentford. Despite a strong performance featuring goals from Joao Pedro, Cole Palmer and Morgan Rogers, Chelsea could not maintain their defensive solidity. The Blues now go three games without a win, their longest such run since 1965, and face a potential need for major changes to their defense after manager Alonso conceded twice in their first five matches.