Argentinean prop Roberto Grau has decided to return home to serve his three-week ban for his part in the brawl during last Friday's opening match with Wales. Grau, who has protested that he only reacted to severe provocation from the also-suspended Welsh flanker Colin Charvis.

Grau received permission from the tournament organisers because his wife has developed complications since giving birth to a daughter on Saturday. The Saracens player, who will return if the Pumas make the quarter-finals, remarked: "The family is a good place to hide."