Frédéric Sinistra

Frédéric Sinistra (13 January 1980 – 15 December 2021) was a Belgian kickboxing champion who died from COVID-19. Born in Seraing, Sinistra taught himself kickboxing at a young age and began competing in the sport at age sixteen. He went on to win the Belgian National Championship title four times and the World Championship a total of three times.

Sinistra was nicknamed "the Undertaker", and at one time was called "Belgium's strongest man". Opponents that Sinistra defeated included Stefan Leko and Dževad Poturak, while he was defeated by Badr Hari, Grégory Tony, and Patrice Quarteron.