The athlete won 20 test matches for the Kiwis before switching representation to Samoa.
Australian rugby league's governing body has declared that players who enter the “counterfeit” R360 competition will be prohibited for 10 seasons.
The new league, set to start in October 2026, is aiming to attract rugby union and rugby league players with lucrative deals and a slimmed-down fixture list.
Prominent NRL athletes have reportedly been approached by the new league, which will include six to eight men's clubs and women's teams located in key urban centers worldwide.
Samoa's the player, who represents his NRL club in the NRL, has confirmed he has had negotiations involving R360.
Ryan Papenhuyzen, Lomax, Haas and Gray are also reported to be considering joining the rebel league.
Several leading rugby union countries, such as Australia, recently imposed a restriction on players joining R360 playing test matches.
“We heard our franchises and we've taken firm action,” commented Australian Rugby League Commission chairman Peter V'Landys.
“Regrettably, there will continually be organizations that attempt to hijack our game for economic benefit.
“They don't invest in development systems or the advancement of players. They merely capitalize on the dedication of existing bodies, jeopardizing careers of financial loss while gaining personally.
“They are, in reality, imitating the sport.”
The organization is co-founded by ex-England star Tindall and funded by private investors.
After the prospective rugby union sanctions were declared last week, it said: “We want to work in partnership as integrated into the global rugby calendar.
“The competition is arranged with bespoke schedules for both genders and we will release all players for global fixtures, as specified in their deals.”
The breakaway group will request authorization for its plans from World Rugby, the sport's governing body, at its council meeting next year.
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