Sebastiaan Bornauw

Youth

Bornauw began his club career - unusually for a European player - in the youth ranks of Moroccan First Division club Wydad Casablanca when his father was working there.

Anderlecht

Bornauw made his professional debut for Anderlecht in a 4–1 Belgian Pro League win over Kortrijk on 28 July 2018, at the age of 19. He played the full game. Bornauw would go on to become a key defender for Anderlecht, despite his young age. In total, he played in 24 league games and he scored one goal as a defender for Anderlecht in his debut season.

1. FC Köln

On 6 August 2019, Bornauw joined 1. FC Köln on a five-year deal. He scored his first Bundesliga goal on 20 October 2019 against SC Paderborn. In his first season at 1. FC Köln, Bornauw established himself as a regular starter and became a key player for the club.

VfL Wolfsburg

On 16 July 2021, Köln announced that the club had transferred Bornauw to VfL Wolfsburg, where he signed a contract until 2026. He scored his first goal for Wolfsburg on 26 February 2022 in a 2–2 away draw against Borussia Mönchengladbach.

Leeds United

On 1 July 2025, Bornauw signed for Premier League club Leeds United on a four-year deal, for a fee of £5,100,000. He made his Premier League debut on 3 December 2025, in the match against Chelsea, coming on as a late substitute for Gabriel Gudmundsson.

Loan to Hamburger SV

On 19 August 2026, Bornauw returned to Germany and joined Bundesliga club Hamburger…

Bornauw debuted with the Belgium national football team in a 1–1 friendly draw with Ivory Coast on 8 October 2020.

Club

As of match played 29 August 2026

International