Shane Williams has been ruled out of action for a minimum of 10 weeks after suffering a dislocation to his left shoulder just before half-time in Wales' 29-25 defeat to South Africa on Saturday.
He suffered the injury after falling awkwardly in a tackle which caused his shoulder to dislocate before returning immediately back into place.
“A scan has revealed that Shane did, as was thought, dislocate his shoulder, before it immediately moved back into place,” said Wales physiotherapist Mark Davies.
“He will now undergo exploratory surgery in the next 48 hours to assess the full extent of the damage caused by the dislocation, but we know he will be out of action now for a minimum of 10 weeks.”