Arthur says his game is improving under Juventus coach Andrea Pirlo.
Pirlo has been critical of Arthur in public this season.
But the former Barcelona midfielder says: “I did suffer bit too much when I arrived, because it was such a completely different way of playing.
"I was lucky to arrive at the same time as a coach like Pirlo who played in my position.
"He has so much experience at this level, so all I can do it keep my head down and listen to him."
