On the morning of the 2019 FIFA Women's World Cup Final, Diacre gave an interview with Téléfoot where she criticized Eugénie Le Sommer’s play during the quarterfinal match against the USA, alleging that Le Sommer ignored Diacre’s tactics and strayed too far to the left. Diacre’s comments were put into question by Olympique Lyonnais president Jean-Michel Aulas and former Lyon manager Reynald Pedros. Aulas claimed that people from Lyon knew of “inconceivable things” that happened during preparation for the 2019 Women’s World Cup. Pedros replied to Diacre’s criticisms with a tweet praising Le Sommer’s play in the striker position with Lyon.