Lock Davies out of Wales tour to South Africa
Ireland's Fergus McFadden and Sean O'Brien tackle Wales' Bradley Davies (centre) during their Six Nations International Rugby Union match at the Aviva Stadium in Dublin on February 5, 2012 - by Peter Muhly
Davies, who will join Wasps this summer, joins a long list of players set to miss out on the trip to the two-time world champions as captain Sam Warburton, fellow flanker Justin Tipuric, full-back and kicker Leigh Halfpenny and centre Scott Williams are also absent.
Hooker Richard Hibbard, scrum-half Rhys Webb and fly-half Rhys Priestland have also been ruled out while flanker Dan Lydiate is a doubt with a hamstring problem.
"Bradley Davies underwent surgery yesterday for a damaged hamstring, ruling him out of contention of Wales' tour of South Africa," the WRU said in a statement.
Wales head coach Warren Gatland is set to name a 31-man tour squad following a practice match between Welsh 'probables' and 'possibles' on Friday night.
Wales face the Springboks in Durban on June 14, and then Nelspruit seven days later with Ospreys lock Alun-Wyn Jones set to captain the side.