It was the autumn of 2008, and the senior players for the Belgian professional soccer team KRC Genk weren't paying much attention to the 17-year-old with the crop of ginger hair as he quietly prepared to train with them for the first time.
Once they stepped onto the training pitch, though, he became harder to ignore.
Yet to even make his debut in the first team, the kid began to openly criticise and bark instructions at the adults around him. "Hey, come on! You need to run more. You need to move into that space for my pass," he complained.