He said, "It's always difficult to know what can happen to a player, but they all know periods when they are worse on the field. It's probably related to trust, their relationship with the coach. It happens every season, for all players.
"Anthony Martial is back at a very, very good level. He is often decisive. He had some physical problems. He is a player who was with us at Euro 2016, he was not with us at the World Cup but he is one of the players we follow regularly. He is a young player who matures because he started very early. There are always difficult moments in a career, but in terms of potential, he has everything you need for the highest level."