Rangi Chase has asked the RFL for an independent tribunal to hear a wrongful dismissal case against Salford.
Chase, who joined the Red Devils on a four-year deal in 2014, was suspended in September last year by Salford after failing to report for training on time and went on sick leave.
He claimed on social media that he was suffering from mental health issues and had considering walking away from rugby league.
The New Zealand-born halfback had his contract terminated by the Red Devils in October.
Chase, who scored 15 tries in 42 games for the club, has since joined Leigh in the Championship.
The GMB-backed Rugby League Players’ Association has requested a tribunal from the RFL to hear the scrum-half’s case.
No date has been set yet for the tribunal.
Chase was named Man of Steel and won the Albert Goldthorpe Medal in 2011.