Indy Boonen

Boonen began his career with Genk but was released in the summer of 2014. He signed a three-year contract with English club Manchester United as a 16-year-old in February 2015. He trained with the first team on occasion, but rejected the club's offer of a new contract in 2018 and left to return to Belgium with K.V. Oostende that June. He made his professional debut for Oostende in a 2–1 Belgian First Division A win over Royal Excel Mouscron on 28 July 2018, coming on as an injury-time substitute for Richairo Živković. He scored his first professional goal in a 1–1 draw away to S.V. Zulte Waregem on 1 December 2018. He finished the season with a total of three goals in 24 league appearances for the club. Boonen played several months for Super League Greece 2 club Panachaiki during the first half of 2024, making four appearances. In June 2024, he returned to Belgium, signing with Challenger Pro League club Lokeren-Temse on a one-year contract with an option for an additional year.

As of match played 11 September 2026

Boonen is the son of former professional footballer Jacky Boonen. His brother Seppe is also a footballer, who most recently played for Patro Eisden. Like Indy, Seppe spent time in Manchester United's youth academy. Seppe began his career as a goalkeeper, but has since changed to being a forward.