Costello van Steenis
Dutch mixed martial artist (born 1992)
Costello van Steenis
Costello van Steenis (born 26 July 1992) is a Dutch-Spanish professional mixed martial artist who currently competes in the middleweight division of the PFL, where he is the current and inaugural PFL Middleweight World Champion. Van Steenis has been a professional MMA fighter since 2014 and has previously competed in Bellator MMA. As of January 27, 2026, he is #4 in the PFL men's pound-for-pound rankings. In April 2026, he reached No. 6 in the middleweight rankings according to Fight Matrix.
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