The French number eight has been impressed with what he has seen of Wales so far and has suggested that they are the All Blacks of the Northern Hemisphere.
"We often say they're the All Blacks of the North," said the Biarritz veteran.
"They're a very good team and above all one which is oozing confidence.
"They seem to be very calm among themselves, even if they're hassled in the games, they don't let it go."
France and Wales will renew Six Nations hostilities when they meet at Eden Park on Saturday morning for a place in the World Cup final on Saturday, October 22.