Jamal Musiala (17, Bayern Munich)
Born in Germany's Stuttgart, Musiala moved to England at the age of 7. The attacking midfielder spent 8 years at Chelsea's youth academy before moving to German giants Bayern Munich in the summer of 2019. The England U17 star made his Bundesliga debut at the age of 17, and became the youngest player to play for Bayern in the German top-flight.
Ninety days later, he scored his first goal for the Bavarians during their 8-0 decimation of Schalke in September 2020, en route to becoming Bayern's youngest ever goalscorer.
Jude Bellingham (17, Borussia Dortmund)
Jude Bellingham was hailed as Birmingham City's finest prospect since Britain's first million-pound man, Trevor Francis. The lanky center midfielder became a bonafide starter for the Blues at the tender age of 16. His exploits in the Championship provoked a bidding war which Borussia Dortmund won, edging Manchester United and Chelsea.
Bellingham penned a five-year contract at Westflanstadion, and his remarkable £25 million fee made him the most expensive 17-year-old in the history of the sport. Bellingham has hit the ground running at Ruhr, scoring on his Dortmund debut in the DFB Pokal to become the club's youngest ever goalscorer at 17 years old.