Kylian Mbappé's challenging adaptation to life in La Liga continued as Real Madrid fell 2-1 to Athletic Club at San Mamés.

The French star missed a crucial penalty and struggled to assert his influence in a match where Real suffered their second league defeat of the season.

The turning point came in the 70th minute when Mbappé had a golden opportunity to equalize after Antonio Rüdiger was fouled in the box.

Athletic goalkeeper Julen Agirrezabala guessed correctly, denying Mbappé a chance to level the scores-a stark déjà vu following his penalty miss against Liverpool in the Champions League last week.