Arsenal's edged clear at the top of English football's Premier League after Manchester United and Manchester City both suffered shock losses.
Arsenal's 2-1 win over Swansea City moves them two points clear of Liverpool, who won 3-1 at bottom side Sunderland on Monday, and Tottenham Hotspur, who drew 1-1 with Chelsea on Sunday.
The defending champions Manchester United were beaten 2-1 at home by West Bromwich Albion while City were upset 3-2 at Aston Villa.
It's United's worst ever start to a English Premier League season and leaves them in the bottom half of the table after six games.
Southampton climbed to fourth with a 2-0 over Crystal Palace, Hull City won 1-0 against West Ham United and Cardiff City won 2-1 away at struggling Fulham.
