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"
Despite drawing with Ireland in the opening round of the RBS 6 Nations, Wales defence coach Shaun Edwards believes the championship 'is still in our hands' as he prepares his side to face Scotland at Principality Stadium tomorrow.
Meet the members of the WRU's inaugural Youth Board - after an online selection process which saw a host of high calibre candidates submit video applications the WRU has made its first 15 appointments.The board is made up of individuals aged between 16 and 21, and will meet for the first time at Principality Stadium on Monday 15th February.
The Wales Women's team headed to Dare Valley Country Park on a team bonding exercise as the entire squad got together for the very first time in preparation for this season's Six Nations championship which kicks off on Saturday with a clash against defending champions Ireland, in Donnybrook.
Wales Head Coach Warren Gatland discusses his team selection for the opening round of the RBS 6 Nations where he leads his side against Ireland, on Sunday. As WRU TV's Luke Brodley discovers, Gatland is fully aware of the challenges the defending champions pose