Arsenal's Alex Oxlade-Chamberlain, left, has a shot blocked by Crystal Palace's Jordon Mutch during the English Premier League soccer match between Arsenal and Crystal Palace at Selhurst Park Stadium in London, Sunday, Aug. 16, 2015 (AP)

Arsenal's Alexis Sanchez celebrates after Crystal Palace's Damien Delaney (not pictured) scores an own goal and the second goal for Arsenal during the English Premier League soccer match between Arsenal and Crystal Palace at Selhurst Park Stadium in London, Sunday, Aug. 16, 2015 (Reuters)

Crystal Palace's Joel Ward, centre, celebrates after scoring a goal during the English Premier League soccer match between Arsenal and Crystal Palace at Selhurst Park Stadium in London, Sunday, Aug. 16, 2015 (AP)

Arsenal's Olivier Giroud, right, celebrates scoring a goal with Hector Bellerini during the English Premier League soccer match between Arsenal and Crystal Palace at Selhurst Park Stadium in London, Sunday, Aug. 16, 2015 (AP)

Arsenal's Alex Oxlade-Chamberlain, left, vies for the ball with Crystal Palace's Pape Souare during the English Premier League soccer match between Arsenal and Crystal Palace at Selhurst Park Stadium in London, Sunday, Aug. 16, 2015 (AP)

Manchester City’s Vincent Kompany, right, celebrates after scoring against Chelsea during the English Premier League soccer match between Manchester City and Chelsea at Etihad stadium, Manchester, England, Sunday, Aug. 16, 2015 (AP)

Chelsea’s Branislav Ivanovic, left, holds back Manchester City’s Raheem Sterling during the English Premier League soccer match between Manchester City and Chelsea at Etihad stadium, Manchester, England, Sunday, Aug. 16, 2015 (AP)

Manchester City’s Vincent Kompany celebrates after scoring against Chelsea during the English Premier League soccer match between Manchester City and Chelsea at Etihad stadium, Manchester, England, Sunday, Aug. 16, 2015 (AP)

Manchester City players celebrate after Sergio Aguero, 2nd right, scored against Chelsea during the English Premier League soccer match between Manchester City and Chelsea at Etihad stadium, Manchester, England, Sunday, Aug. 16, 2015 (AP)

Chelsea's Radamel Falcao, Diego Costa and Cesc Fabregas look dejected after Manchester City's third goal during the English Premier League soccer match between Manchester City and Chelsea at Etihad stadium, Manchester, England, Sunday, Aug. 16, 2015 (Reuters)