 Prinsloo had the daunting task of wearing the St. Helens number five jersey at the same time as Tom van Vollenhoven was setting the whole game on fire on the other wing.His record and strike-rate demonstrates what a fine finisher Prinsloo was in rugby league.He made his début for Wakefield Trinity during February 1961, and he played his last match for Wakefield Trinity during the 1962–63 season.