Liverpool suffered their first Premier League defeat under manager Arne Slot, while Erling Haaland scored another double for Manchester City.
The Reds, who started the season with three wins and a 7-0 scoreline, lost 1-0 at home to Nottingham Forest, with Callum Hudson-Odoi scoring the winner for the visitors in the 72nd minute.
Erling Haaland continued his scoring spree for Manchester City after the international break. The Norwegian scored his eighth and ninth goals in the 2-1 home win against Brentford, while Manuel Akanji played in central defense for the Citizens, who won for the fourth time.
Aston Villa avoided defeat at home to Young Boys in the dress rehearsal for Tuesday's Champions League opener. Coach Unai Emery's side came from 2-0 down to beat Everton 3-2, with international striker Ollie Watkins scoring twice for Aston Villa.