Chelsea players applaud to supporters after the Europa Conference League match between Chelsea and FC Copenhagen at Stamford Bridge stadium in London.

Chelsea's Kiernan Dewsbury-Hall, right, celebrates scoring his side's first goal during the Europa Conference League match between Chelsea and FC Copenhagen at Stamford Bridge stadium in London.

Copenhagen's William Clem shoots on goal during the Europa Conference League match between Chelsea and FC Copenhagen at Stamford Bridge stadium in London.

Copenhagen's Victor Froholdt, left and Chelsea's Moises Caicedo challenge for the ball during the Europa Conference League match between Chelsea and FC Copenhagen at Stamford Bridge stadium in London.

Chelsea's Kiernan Dewsbury-Hall, left, and Copenhagen's Victor Froholdt challenge for the ball during the Europa Conference League match between Chelsea and FC Copenhagen at Stamford Bridge stadium in London.

Copenhagen's Victor Froholdt, right, and Chelsea's Moises Caicedo challenge for the ball during the Europa Conference League match between Chelsea and FC Copenhagen at Stamford Bridge stadium in London.

Copenhagen's Victor Froholdt and Chelsea's Trevoh Chalobah challenge for the ball during the Europa Conference League match between Chelsea and FC Copenhagen at Stamford Bridge stadium in London.

Chelsea's Enzo Fernandez, right, crosses the ball during the Europa Conference League match between Chelsea and FC Copenhagen at Stamford Bridge stadium in London.