Miralem Pjanic was said to lack composure , while his Juventus manager , Massimiliano Allegri , described him as a future world class midfielder in 2016 , although he later added that he needed to remain `` calm and focused '' .
Nicknamed `` il Piccolo Principe '' ( `` the Little Prince '' ) during his time with Roma , Pjanić was regarded as one of the most promising young midfielders of his generation in his youth , and was included in Don Balón 's list of the 100 best young players in the world in 2010 .
Miralem Pjanić