The Swiss has dubbed the youngster a "phenomenon".
âHe is a world-class player,â the Switzerland international told RMC Sport. âHe is a phenomenon.
âEven if he is still young and lacks a touch of experience, he can go far in his career.
âHeâs doing even better this season than he did in the last one and he deserves to be a starting player at a club like Juventus.â
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