Could R360 take legal action against the eight unions who will deem any player that signs with the Saudi-backed league as ineligible for international rugby?
New Zealand, England, Ireland, France, Scotland, Australia, South Africa, and Italy have joined forces against the competition, which is set to launch next year.
While NZR has a policy to avoid selecting overseas-based players, other countries regularly pick from outside their domestic competitions.
International Rugby Players' Association boss Omar Hassanein told Mike Hosking this precedent is likely to be explored by R360's lawyers.
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The Mike Hosking Breakfast