O'Meley spent five years at the Bulldogs before joining the Roosters
Former Australian Test prop Mark O'Meley has agreed to join Super League Hull FC on a three-year deal.
The Sydney Roosters forward is to undergo knee surgery this week, ruling him out for the remainder of the year.
And having been released from the final season of his Australian Rugby League contract, the 28-year-old will depart for Hull at the end of the year.
"I'm sad to be leaving the Roosters but I'm looking forward to the experience over in the UK," O'Meley said.
O'Meley, who joined the Roosters from the Canterbury Bulldogs last year, played 10 Tests for the Kangaroos from 2004 to 2006 and 10 times for New South Wales in State of Origin against Queensland.
He will join current team-mates Craig Fitzgibbon and Jordan Tansey at Hull, and said: "I have had a wonderful time at the Roosters and I can take some great memories with me.
"While it has been a lean season this year, I'm excited about the future of the club and the young players that we have coming through."