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"
Ebbw Vale captain Damien Hudd picked up the biggest accolade of the night at the 11th Principality Premiership Awards Evening held at Principality Stadium, after leading his side to the title for the first time.
Wales assistant coach Robin McBryde is predicting a tough battle against England on Sunday despite the fact they may not be considered to be at full strength. Players will be out to impress Eddie Jones which makes England a dangerous proposition, he says.
Wales U20 captain Tom Phillips and performance psychologist Dr Rich Neil explain why spending three days at Monmouth RFC has further strengthened the togetherness of the squad ahead of the #WorldRugbyU20s
Alongside Scarlets flanker James Davies and Cardiff Blues centre Cory Allen, three Wales Sevens core players have made the extended training squad for GB Sevens. Wales Head coach Gareth Williams tells WRU TV's Graeme Gillespie why Luke Treharne, Sam Cross and Luke Morgan earned selection in the initial training squad for Rio.
Wales Sevens head coach Gareth Williams tells WRU TV's Graeme Gillespie he has had to overcome a number of injuries before naming a competitive squad for this weekend's penultimate round of the World Series in Paris.