8) He’s very mature
His manager, former Manchester United player Henning Berg has said that the Pole has a great mindset.
“For his age he has a very developed ability to make appropriate decisions. Personality sets him on the field, he told legia.sport. “At the first training was a kid who wanted to kick the ball. In his debut, he played as if it was just another game. He does not crack. We had to teach him tactically, but individual skill was already at a high level.”