The Cardiff Blues pairing of Cory Allen and Tomos Williams have been added to the Welsh roster to face Los Pumas on Saturday.
The four-time capped Allen replaces the injured Tyler Morgan. The Newport Gwent Dragons mid-fielder has been forced out with a hamstring injury. Allen made his debut against Argentina in 2013. That fixture was the most recent match between the countries. His most recent match was against Uruguay at last year’s World Cup.
Williams comes in for Rhys Webb. The first choice Welsh scrum half was stretchered off against Australia on Saturday. An appearance for Williams against Argentina would see him making his test debut.