Jones won 100 international caps with 95 games for Wales and five Tests for the British and Irish Lions on two tours.
He was awarded the first of his caps in 2003 against England and went on to win four Six Nations titles and compete in three World Cups.
Jones toured with the Lions in South Africa in 2009 and proved a cornerstone on the victorious series win in Australia four years later.
He starred for Neath and Ospreys, and played a season for Cardiff Blues before joining Harlequins in 2015.
After combining coaching and playing duties, Jones announced his retirement in 2018 to take up a full-time coaching role at Quins, where he has helped props like Joe Marler, Kyle Sinckler and Fin Baxter.
“Representing your country as a player or a coach is a great honour,” said Harlequins director of rugby Billy Millard.
“When we were informed of Adam’s opportunity, we wanted to work collaboratively with him and the Welsh Rugby Union on a solution that catered for all.
“We have no doubt he’ll benefit greatly from the exposure of coaching at international level and take learnings from the experience, while continuing to support Danny [Wilson] and the wider coaching staff throughout the Premiership Rugby Cup campaign.”
Former Harlequins and Wales centre and current WRU board member Jamie Roberts benefitted from McCann’s work in his playing days.
‘It’s brilliant for the playing group to have someone of Andy’s experience and wisdom to lean on during the upcoming Six Nations campaign,” said Roberts.
“Having been around the camp for many years during Warren’s first tenure, I know from experience that Andy’s mental and motivational skillset played a pivotal role in supporting the growth, confidence, and performance of many of the household names of that generation.”
