The operation aims to remedy a "core instability in the shoulder" and will take place over the next three weeks. Ryan's rehabilitation is likely to take at least six months, ruling him out of the Ospreys remaining four Heineken Cup Pool 3 games, as well as their defense of the Celtic League and Welsh international action.
Commenting on Ryan's injury Ospreys Rugby Manager Derwyn Jones said, "This is devastating news for Ryan, the Ospreys and Wales. Ryan made a massive impact last season, with his progress culminating on the Lions tour where many observers commented that he was the stand-out player of the tour.
It is vital that this procedure is undertaken in order to protect his long term career. We have taken the best possible medical guidance and they have advised that Ryan is best served by undergoing this surgery"
Roger Lewis talks to WRU TV at the announcement of a new £60 million Rugby Services Agreement (RSA) which provides a new and positive contractual relationship between the WRU and its four Regions for the next six years has been agreed.
The Welsh Rugby Union has announced a major new sponsorship deal with Gullivers Sports Travel which will make the UK's leading, and longest established, multi-sport tour operator, an Official Supplier for the rest of the decade.
Having taken part in seven World Cups as a player and coach, Liza Burgess hopes to go out in style this afternoon when Wales take on Australia in the Play-off for seventh and eighth place in the Women's Rugby World Cup in Paris.
WRU Head of Rugby Josh Lewsey met with volunteers across the game earlier this week, championing their role in the sport. He was joined by Wales captain Sam Warburton for part of the day as volunteers took part in a 'Try Out' event for the 2015 Rugby World Cup
Wales Women may not have got the results they wanted recently on the field, but off it they have made massive strides in strength and conditioning - and that is in no small part due to S&C coach Sam Dodge.
Two weeks into the new pitch project at Millennium Stadium, Groundman Craig Campbell takes staff on a unique behind-the-scene tour of the works so far and National Squad Assistant Strength and Conditioning Coach John Ashby and Tour Guide Peter Owen describe what the revamp means for them.
Try-scorer Jenny Davies and fellow prop Megan York reveal to WRU TV's Graeme Gillespie their thoughts after Wales broke their drought in the Women's Rugby World Cup with a 35-3 win over South Africa in Paris.