Antoine Griezmann pulled no punches over his performance in Atletico Madrid's dramatic 2-1 Champions League Group C loss to Chelsea.
France star Griezmann put the hosts in front with a 40th-minute penalty in their first continental outing at the Wanda Metropolitano, but blamed himself for the defeat.
Alvaro Morata headed Chelsea level with his seventh goal of the season before substitute Michy Batshuayi stole the points with the last kick of the game.
Asked what went wrong for Atletico, who were watched from the stands by Diego Costa, Griezmann told reporters: "Maybe we lacked a better game from me.