Sheffield Eagles long-serving captain Jack Howieson has announced his retirement with immediate effect.
The Scottish international prop forward has played 275 games for the club since making his debut in 2001. He led the team to their first Championship title last season.
Howieson, 31, says increasing work commitments and the need for a second knee operation in four months was the deciding factor.
“I have loved every minute of my playing career at Sheffield and have been lucky enough to fulfil one of my goals last year in winning the Championship Grand Final,” he said.
“The support I have received from Mark Aston has been outstanding. I would like to also thank all the fans, staff and players past and present for making my time at Sheffield Eagles such an enjoyable one.”
Mitch Stringer has taken over a captain and will lead the team at Keighley on Sunday.
Club chairman Ian Swire said Howieson had been a “fantastic ambassador” and “will be remembered for his leadership qualities”.