Chelsea are weighing up their options to address a defensive gap after centre back Levi Colwill suffered an anterior cruciate ligament (ACL) injury, manager Enzo Maresca said ahead of their opening Premier League match against Crystal Palace on Sunday.

"The message before the game was to make them understand that we are here to win the game," Maresca said.

Cole Palmer scored two goals and made another as Chelsea stunned Paris Saint-Germain in the final of the Club World Cup on Sunday, beating the European champions 3-0 at the MetLife Stadium to win the first edition of FIFA's new competition.