Roger Tuivasa-Sheck won 20 test matches for New Zealand before transferring allegiance to the Samoan team.
The NRL's authority has declared that athletes who join the “breakaway” R360 league will be prohibited for 10 years.
The proposed competition, set to start in October 2026, is aiming to attract athletes from both codes with hefty contracts and a reduced fixture list.
Prominent National Rugby League players have allegedly been contacted by the new league, which will include six or eight men's sides and four women's sides operating from large metropolitan areas around the world.
Samoa's the player, who plays for the Warriors in the NRL, has stated he has had discussions with the breakaway league.
Papenhuyzen, Lomax, Haas and Gray are also said to be considering joining the new competition.
Several leading rugby union countries, such as Australia, last week declared a ban on athletes signing with R360 participating in test matches.
“We've listened to our franchises and we've acted decisively,” said the league's head V'Landys.
“Unfortunately, there will persistently exist organizations that try to exploit our code for economic benefit.
“They avoid funding in talent pipelines or the advancement of players. They simply exploit the hard work of other organizations, jeopardizing careers of financial loss while profiting themselves.
“Essentially, they are, counterfeiting a code.”
R360 is established by ex-England star Mike Tindall and supported by independent financiers.
Following the prospective union bans were declared earlier, it commented: “We aim to collaborate collaboratively as part of the international rugby schedule.
“The event is designed with customized calendars for both genders and R360 will permit participants for global fixtures, as included in their contracts.”
The breakaway group will seek approval for its initiatives from World Rugby, the sport's administrative organization, at its board session in 2026.