French coaching legend Guy Roux has attacked Arsenal boss Unai Emery.

Roux, the long time Auxerre manager, branded Emery a "coward" for his time with PSG.

He told L'Equipe: "Thomas Tuchel is not a coward. He will not go down in fear like his predecessor in Barcelona.

"He's not going to put on the right wing a defender, etc. while he needs to score.

"He is very calm, very thoughtful. And when you see the speed at which he learns French..."