Jurgen Klopp believes Florian Wirtz's time at Liverpool will be defined by the answer to one major question.
The legendary Reds boss is a vocal supporter of the club's swoop for the German superstar but knows success is no guarantee.
Wirtz inked a five-year deal with Liverpool in June as he made a £100million switch from Bayer Leverkusen - and that could rise to £116m with add-ons.
He was left out of the squad for their first pre-season game against Preston - a 3-1 win at Deepdale - despite other new faces in Giorgi Mamardashvili, Jeremie Frimpong, Milos Kerkez, and Freddie Woodman getting some minutes in.