Bradford captain Matt Diskin has announced he will retire at the end of the season.
The 32-year-old former Leeds hooker has made 364 appearances for club, county and country, in a career spanning 14 years.
The Dewsbury-born hooker made his debut for Leeds in 2001 and went on to win four Super League titles with the Rhinos and was crowned a World Club Challenge winner in 2008.
Diskin has made 86 appearances for the Bulls, having arrived at the Provident Stadium in 2010, and has skippered the side for the past three seasons.
He has played three times for Yorkshire, three for England and won seven England A caps, in addition to a solitary Great Britain appearance.
"I have enjoyed a wonderful career, one which I would have happily completed for free," said Diskin.
"I am extremely proud of what I have achieved in the game and, not being the most naturally-gifted player, I have done this through sheer hard work and determination.
"There have been plenty of ups and downs but I live with no regrets. Hindsight is wonderful but I would not have changed a thing.
"In my head, I would like to think I could play for another 10 or 20 years but my body is no longer allowing me to do the things I want it to do.
"I have made this call in order to ensure my longevity as a father, a husband and a person."
Diskin, who has business interests outside rugby league, took charge of the team as caretaker coach between the departure of Francis Cummins and the appointment of James Lowes and is keen to stay in the game.
Lowes says Diskin will go down as one of Super League's all-time greats.
"Matt has had a fantastic career and is a great person to work with," Lowes said.
"I cannot thank him enough for what he has offered both myself and the team since I arrived here.
"Matt can look back on a great deal of success, achieved at the top level of the sport, and he can retire knowing he has reached great heights, claiming some huge honours along the way."