The lawyer for Blake Ferguson has launched a scathing attack on the NRL for their lack of ''mercy'' towards the troubled NSW Origin star and questioned what would become of him if he wasn't allowed to resume playing after receiving a two-year good behaviour bond for indecent assault.

Adam Houda, who has lodged an all grounds appeal against the conviction and penalty, admitted Ferguson had a problem with alcohol but said he needed support - not banishment - from the game that had provided a ''lifeline'' for him after a ''harrowing'' upbringing by his drug-addicted mother.

On bond: Blake Ferguson leaves the Sutherland Local Court on Monday. Credit:AAP

With Sydney Roosters, South Sydney, Cronulla and Canterbury believed to be interested in Ferguson, Houda said the 23-year-old would be best served by playing as he would have to train up to seven days a week and be focused on helping his team in games.

''That is his best rehabilitation because that is what Blake does best but right now he is unemployed, he is earning no money and what are you going to do - just leave him to hang out with undesirables,'' Houda said.