The NRL betting code states "No NRL employee, NRL club employee, player, player manager or game official is allowed to participate, or be directly or indirectly involved in any way, in gambling in relation to rugby league.
"Or be involved directly or indirectly, in the provision of information not already in the public domain that might assist another person to gamble in relation to rugby league."
The Samoan international has played 79 games for the Tigers since making his debut in 2011.
He was recently linked with an immediate move to the Gold Coast as the Tigers face a battle to balance their salary cap this year.
In 2014, the NRL banned five players including Manly's David Williams and North Queensland's Ethan Lowe after they were found guilty of betting on games involving their clubs.
Then NRL chief operating officer Jim Doyle promised a zero tolerance policy on betting and the governing body vowed to implement strict counter measures.