French World Cup winners Christophe Dugarry and Emmanuel Petit slammed their compatriot Mamadou Sakho for his rant against Jurgen Klopp on Snapchat.
The Liverpool defender aired his grievances to followers at three in the morning on Saturday, prompting the pundits to condemn his behaviour.
Dugarry told SFR Sport: 'He doesn't need to talk to his fans, he needs to talk to his coach.
'What is he doing talking to his fans at three in the morning?