Hertha Berlin boss Pal Dardai insists Arsenal loanee Matteo Guendouzi has plenty to learn if he wants to have a long and successful career, claiming he is currently going through 'football puberty'.
Guendouzi is gaining experience on loan in Germany with Hertha after being frozen out by Arsenal boss Mikel Arteta at the end of last season.
The 21-year-old midfielder has seen his character heavily questioned since joining the Gunners in the summer of 2018, with Arteta shipping him out on loan to develop his all-round game.
And Hertha coach Dardai has admitted that Guendouzi is still a long way off from the level required to reach the very top while claiming he has a rebellious instinct.