Walker won't face Boks
Wing Eli Walker has been ruled out of what was set to be his Wales debut in their November Test opener with South Africa on Saturday.
The Ospreys wide man was injured in training on Thursday, and will be replaced by Liam Williams in the starting line-up.
Fellow Osprey, centre Ashley Beck, comes in to the replacements.
Having been ruled out of Wales' June Tests with Japan and the 2013 Six Nations through a back injury, Walker's latest problems represent yet another setback.