Dylan Walker’s future at South Sydney is now even murkier, with the representative centre reportedly issued with a show cause notice over his role in September’s drug overdose.

The four-time Australian representative was rushed to hospital alongside winger Aaron Gray on September 22 after taking a dangerous cocktail of prescription drugs.

The NRL immediately launched an investigation into the incident and now the Rabbitohs have requested that the 21-year-old faces the board to explain his role in the night, according to Nine News.

It is believed the toxicology report of the pair will confirm no illicit substances were taken, instead showing Walker and Gray dangerously mixed three prescription medications, including painkillers Endone and tramadol.

Walker is already reportedly on the outer at Redfern, with recent reports linking him with a move to Manly in order for the Rabbitohs to potentially make room for Sam Burgess.

The South Sydney junior has scored 32 tries in 61 games for the club and was a key member of their 2014 premiership victory.