Rugby league's World Club Challenge will expand from next year.
The competition will grow from a one-off game between the champions of the NRL and UK Super League to a six team competition.
The champions of the NRL will be joined by the Rabbitohs and Broncos regardless.
The top three teams from the northern hemisphere competition will make up the remainder of the competition.
The tournament will be held in the UK next February over three days.
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