Football has seen a number of highly rated young players embark on extensive club-hopping careers, changing teams multiple times before their 23rd birthday. One such player is Croatian midfielder Alen Halilovic, who began his professional career with Dinamo Zagreb at 16. He later moved to Barcelona, spending two years there, primarily with their B team, before a loan spell at Sporting Gijon.

In 2016, Halilovic joined Hamburg, where he remained for two seasons, including a loan spell at Las Palmas. By the age of 22, he had moved to his sixth club, AC Milan, marking his fourth country of play. His career continued with spells at Birmingham City and Reading before he joined Fortuna Sittard in the Netherlands.

These rapid career shifts highlight the phenomenon of young talents moving frequently, seeking opportunities and adapting to new environments across various leagues and nations at a very early stage of their professional lives.