Ross Davies and Colin Phillips lead the way out of Castle Park as Doncaster Knights announce eight players will leave the Championship club.
The upfront tight head pair will be joined by Will Foden and Phil Eggleshaw, and Tongan half backs Tomasi Palu and Ume Fosita in parting company with the club.
Fan favourite Bruno Bravo and fly-half Paul Roberts have also both departed after two years at the club.
“I wish to sincerely thank all the boys who are leaving for their hard effort and commitment during their time at Castle Park,” said Director of Rugby Clive Griffiths.
“It goes without saying that they have all played a massive part in our success. Especially those boys involved in the promotion-winning season.
“It is never easy to part company with members of the family but these tough decisions have to be made and I make them in the best interests of the club.
“I wish all the guys that are leaving every success in their future endeavours.”