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In page Gary Prohm:

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Prohm played left-centre, i.e. number 4, and scored 2-tries in Hull Kingston Rovers' 14–15 defeat by Castleford in the 1984 Challenge Cup Final during the 1984–85 season at Wembley Stadium, London, on Saturday 3 May 1986, in front of a crowd of 82,134.