Manly's Jamil Hopoate has had his potential NRL debut blocked by the game's integrity unit after it was deemed the troubled youngster still required further rehabilitation.
Hopoate, the son of former Manly bad boy John, served nine months in Long Bay jail after pleading guilty to two counts of of assault occasioning actual bodily harm in company, in December 2014.
The Sea Eagles wrote to the NRL this week in an attempt to have the 21-year-old debut against Penrith on Sunday night, but the move has been blocked by the NRL.
"The NRL has required Jamil undertake a range of rehabilitation work before it will consider registering his contract," an NRL spokesman told AAP on Thursday. That rehabilitation has not yet been undertaken."
Hopoate's contract was torn up by the Sea Eagles at the time of his sentencing over the February 2014 incident, having previously been shown the door by Parramatta in 2012 after misbehaving at an NRL rookies camp.