Who could be the next big breakout star in Europe?

Aurelien Tchouameni went from Monaco's midfield to an €80m move to Real Madrid out of nowhere this summer. But who could be the next breakout star?

Who could be the next big breakout star in Europe?
Aurelien Tchouameni went from Monaco's midfield to an €80m move to Real Madrid out of nowhere this summer. But who could be the next breakout star?