Wales great hangs up his boots
Jones, a four-time Six Nations winner, has been appointed as assistant forwards coach at The Stoop and and will work alongside forwards coach Graham Rowntree.
"I'll be officially retiring from playing at the end of the season," said the 37-year-old Jones in a Harlequins statement. "I've had a great career and never thought I'd go on to achieve what I have.
"I'm so passionately proud to have played so many times for Wales and was fortunate to be a part of three Grand Slam-winning teams. But it’s time to move onto the next chapter of my career and concentrate on coaching.
"We potentially have the best group of props in the Premiership at Harlequins, with England props Joe Marler, Kyle Sinckler and Will Collier, plus the up-and-coming Lewis Boyce. So I hope to be able to help them push on with Harlequins and at international level."
Jones's 18-year senior club career started with Welsh side Neath and encompassed spells with the Ospreys and a season with Cardiff Blues before joining Harlequins three years ago.
For Wales, he won 95 caps and also made five appearances for the Lions in an exactly 100-match international career that included the combined side's victorious 2013 tour of Australia.
Agence France-Presse
