Fleuriau Chateau played youth soccer with Capital United and West Ottawa SC.
[4] During a spring game in 2022, he tore his ACL, causing him to miss the entire 2022 season.
[5] On August 28, 2023, he scored his first collegiate goals, netting a brace in a 2-2 draw with the Rutgers Scarlet Knights.
[26][27][28][29] He made his Major League Soccer debut on July 6, 2024 against CF Montréal.
[30] In September 2024, he signed a contract with Vancouver Whitecaps FC through the 2025 season, with options for 2026 and 2027.