Cardiff Blues have announced that club captain Matthew Rees is to have an enforced spell away from rugby as he will undergo testicular surgery.
Hooker Rees, who joined the region from Scarlets this summer, will miss Friday's Pro12 trip to Ulster. The region gave no further details as to reason for the operation nor how long they expected Rees to be on the sidelines.
"Cardiff Blues would like to take this opportunity to wish Matthew a speedy recovery and we look forward to seeing him back in action in the future," read a statement on Tuesday.
Rees won his 61st cap for Wales against Ireland in the 2013 Six Nations.