Cassiano Tomas Kiala was born on 11 January 2009 in Germany and is a German youth international. He joined Hertha BSC's youth academy as a youngster and moved to Bayern Munich's youth setup in summer 2024.
On 21 December 2025 he made his Bayern senior debut, becoming the second-youngest player ever to play for Bayern Munich at 16 years and 344 days, behind only Paul Wanner who had debuted at 16 years and 15 days in 2022.
He has captained Germany's U17 since September 2025 and been linked with senior interest from Manchester City and Chelsea, with Italian and English transfer media tracking his progression.
A central defender who combines size, athleticism and composure on the ball, Kiala is regarded as one of the most exciting teenage defenders in European football.
Public information about him is still developing, and this profile will be updated as more career and biographical detail becomes confirmed from independent sources.