Kattoussi, a first-time Olympian, won a gold medal at the Paris 2024 Olympics in the men’s -80kg category. He also won bronze in the men's -74kg category at the 2022 World Championships and won the gold medal in the men's -80kg category at the 2019, 2021, 2022, and 2024 African Games in Ghana. He ranked first in the men's -80kg category in the senior divisions of the Olympic and the World Kyorugi rankings as of October 2024, according to the World Taekwondo.