Manchester United thrashed Premier League champions Leicester City as boss José Mourinho dropped captain Wayne Rooney from his starting line-up. Everton lost in the league for the first time under Ronald Koeman as Junior Stanislas' superb shot gave Bournemouth a deserved victory. Liverpool claimed a third straight Premier League win courtesy of an emphatic victory over 10-man Hull. Son Heung-min scored two superb goals as Tottenham made their best start in the top flight for 51 years with victory at Middlesbrough.