Kylian Mbappé's shows his support for his brother Ethan. / Screengrab Instagram @k.mbappe Mbappé commemorated Ethan's special night by posting a photo of his younger brother with celebratory emojis.

This article was originally published on www.si.com as Kylian Mbappe Reacts to 18-Year-Old Brother Ethan's Champions League Debut.

Ethan Mbappe, the younger brother of star forward Kylian, has signed a new youth contract with PSG, the club have announced. The 15-year-old has been in PSG's youth system and has now signed on ...