International scheduling clashes are once again putting the World Club Challenge in jeopardy, raising fears the fixture will be cancelled for the second consecutive year.

The showpiece fixture's recent vulnerability in the face of tight pre-season schedules is prompting fundamental questions about the future viability of the concept.

While the Brisbane Broncos earned their spot in the annual pre-season clash of the NRL and Super League champions, Hull Kingston Rovers' grand final win on Sunday has created fresh scheduling issues. Advertisement

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Tyson Smoothy reacts during the NRL grand final. Cameron Spencer via Getty Images

The conflict stems from Hull KR being part of the rugby league extravaganza in Las Vegas next year. The new ch

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