Check out Mbappé's Instagram story below: Mbappé commemorated Ethan's special night by posting a photo of his younger brother ...

On Instagram, Mbappe posted: "I am very proud to continue with my team, PSG." PSG fans will now be desperate to see another Mbappe sign a contract extension at PSG, Ethan's older brother Kylian.

Check out Mbappé's Instagram story below ... was originally published on www.si.com as Kylian Mbappe Reacts to 18-Year-Old Brother Ethan's Champions League Debut.