The NRL has stood down Jack Wighton until the end of round 25, effectively ending his 2018 season.
The game's governing body also are imposing a $30,000 fine for his involvement in a pre-season incident.
The NRL released this statement:
The NRL has suspended Canberra fullback Jack Wighton for 10 weeks and imposed a fine of $30,000 for his involvement in a pre-season incident.
Wighton, who has already been stood down by the Raiders for two weeks, will be ineligible to play until the end of Round 25.
He has pleaded guilty to five counts of assault and one of public urination and will return to the ACT Magistrates Court for sentencing in November.
The Raiders suspended him for six weeks but an NRL spokesman said video footage showed the conduct warranted a stronger penalty.
Wighton will have five days to respond to the proposed penalty.