De Sloover started playing hockey at the age of four. He played at Saint-Georges Hockey Club in Kortrijk from 2001 until 2014. He changed to Beerschot in the 2014–15 season. He was relegated with Beerschot in the 2021–22 season, after the relegation he joined Dutch side Oranje-Rood.[2]
Both of his parents, his grandfather, and his cousin Alix Gerniers are also active in professional hockey. Old hockey player Corneille Wellens was married to a first cousin of his great-grandfather Jules De Sloovere.
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