Arsenal's Mikel Merino, center, celebrates with his teammates after scoring his side's third goal during the Champions League quarterfinal first leg soccer match between Arsenal and Real Madrid at the Emirates Stadium in London.

Arsenal's Declan Rice, left, controls the ball past Real Madrid's Luka Modric, right, during the Champions League quarterfinal first leg soccer match between Arsenal and Real Madrid at the Emirates Stadium in London.

Real Madrid's Kylian Mbappe, left, controls the ball past Arsenal's Martin Odegaard during the Champions League quarterfinal first leg soccer match between Arsenal and Real Madrid at the Emirates Stadium in London.

Arsenal's Declan Rice celebrates after scoring his side's second goal during the Champions League quarterfinal first leg soccer match between Arsenal and Real Madrid at the Emirates Stadium in London.

Real Madrid's goalkeeper Thibaut Courtois makes a save during the Champions League quarterfinal first leg soccer match between Arsenal and Real Madrid at the Emirates Stadium in London.

Real Madrid's goalkeeper Thibaut Courtois, second left, makes a save in front Arsenal's Mikel Merino, right, during the Champions League quarterfinal first leg soccer match between Arsenal and Real Madrid at the Emirates Stadium in London.

Arsenal's Declan Rice, left, scores his side's opening goal during the Champions League quarterfinal first leg soccer match between Arsenal and Real Madrid at the Emirates Stadium in London.

Arsenal's goalkeeper David Raya, center, catches the ball between Real Madrid's Rodrygo, right, Arsenal's Myles Lewis-Skelly during the Champions League quarterfinal first leg soccer match between Arsenal and Real Madrid at the Emirates Stadium in London.

Arsenal's Declan Rice, right, attempts a head at goal in front of Real Madrid's Antonio Rudiger during the Champions League quarterfinal first leg soccer match between Arsenal and Real Madrid at the Emirates Stadium in London.