How it really went:
Lewandowski: "Pow, how old are you?"
Pau: "16 years old and recently turned 17"
Lewandowski: "Are you an idiot? 17 is bigger than 16, you can't be 16 if you recently turned 17. Go back to school instead of playing football."
Lewandowski later said in the dressing room: "Listen, it's impossible to believe. This guy is too stupid to count till 17.I've never seen anything like this before."