Tom Shanklin has been ruled out of Wales' game with Argentina on Saturday after fracturing a bone in his nose.
The Cardiff Blues centre was injured after clashing with team-mate Gethin Jenkins 49 minutes into the 17-13 victory against Samoa on Friday night.
Shanklin is expected to be fit for Wales’ final autumn appointment against Australia on November 28.
Jonathan Davies replaced Shanklin against Samoa and the Scarlets centre would be favourite to start against the Pumas this weekend.
Ospreys centre Andrew Bishop has been called into the Wales training camp as cover.