Ahead of tonight's clash with Manchester United, the manager said: "He's stepped up so quick and is adapting to the Premier League football and the intensity, the speed of the game. His decision-making, his pre-orientation, his solutions with one or two touches is amazing.
"But also we have to stay calm. I always wish the best for my players and the more successful, the more international games, the better it is because everybody wants to play for his home country.
"But also we have to think it was in the March international break he was nominated for the U20s, then the U21s, so he was then in the second game and he played some minutes, so I don't know if it's the right moment for talking about the (senior squad for the) Euros, but he will have a fantastic career because, again, he's a very good guy and an extraordinary football player."