The new Champions League format leaves plenty of margin for error for clubs aiming to reach the knockout rounds, and yet European heavyweights such as Real Madrid and Paris Saint-Germain are currently at risk of an early exit.

Still, Mbappe missed a penalty and did not resemble any superstar qualities he's exhibited in years past. Though Mo Salah also botched a penalty for Liverpool, Arne Slot's side won thanks to second-half goals by Alexis Mac Allister and Cody Gakpo.

Sport says Real president Florentino Perez has asked their former coach to speak with Mbappe to help rebuild his confidence. The two have a close relationship, and it was, among other things, Zidane, who has been both a player and head coach at Real Madrid, who persuaded Mbappé to switch from PSG to Real this summer.