Wales have injury concerns over a number of players ahead of their final autumn Test match against South Africa.
Scrum-half Rhys Webb, wing George North and loose-head Nicky Smith were all hurt during the 34-16 defeat by New Zealand in Cardiff.
Smith's injury is a big concern as Bath prop Paul James is not available to face the Springboks on 29 November.
"Nicky Smith did a pectoral muscle and George has got quite a severe laceration," said coach Warren Gatland.
Try-scorer Webb has a groin injury.
Gatland says he may have to call in "a couple" of props after Smith's injury, James' unavailability and concern over the fitness of Gethin Jenkins.
The Blues loose-head missed the game against New Zealand because of a hamstring problem.
Bath's James will not be released for the match because it falls outside the international window.
"We'll have to see how he [Jenkins] turns up on Monday with that hamstring," said Gatland.
Smith came on as a late replacement for James against the All Blacks, but the Ospreys prop had to go off after a few minutes with a pectoral muscle injury.