Arsenal suffers first loss of season after Brighton scores three goals

Arsenal lost their first Premier League match of the season after giving up three goals against Brighton in a surprise defeat. Boss Mikel Arteta called the loss a big lesson for the team. Arsenal are the defending champions and many people picked them to keep the title they won last season for the first time in 22 years. Before this match, the team had a strong start with seven straight wins this season across all competitions. That run included nine league wins in a row starting back in April.