(From L) Paris Saint-Germain's German midfielder Julian Draxler, Paris Saint-Germain's Brazilian forward Neymar and Paris Saint-Germain's French forward Kylian Mbappe hug during a training session at the Camp des Loges in Saint-Germain-en-Laye on September 11, 2017 on the eve of the Champions League football match between PSG and Celtic FC. / AFP PHOTO / CHRISTOPHE SIMONCHRISTOPHE SIMONAFP