Leniu has been referred straight to the NRL judiciary after the allegation came to light following the competition's season-opening games in Las Vegas.
Robinson said just because there'd been a complaint, doesn't mean it's right and said he'd await the formal process to unfold.
Tuqiri says if a player says he's been racially vilified on a footy field, it happened.
He added that he doesn't get how Robinson can sit in a post match press conference and "gaslight" Mam by saying that.
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