Chelsea make 100 % start to new season Premier League season . Diego Costa scores twice as Everton are beaten 4 - 3 at Goodison Park . Manchester City suffer a defeat against Stoke . The veteran Spanish midfielder , who joined Pep Guardiola 's side from Real Madrid on Friday , played nearly 70 minutes before being substituted , by which time both goals in the game had been scored . Manchester United play out a draw at newly - promoted Everton .
Chelsea make 100 % start to new season Premier League season . Diego Costa scores twice as Everton are beaten 4 - 3 at Goodison Park . Manchester City suffer a defeat against Stoke . Manchester United play out a draw at newly - promoted Everton .