The rearguard problem was quite clear during Les Bleus' warm-up games, including a 1-0 loss to China.

"It's always hard for a team to let in goals," Barcelona man Abidal told Telefoot. "Now I don't think that it's linked only to the defense.

"There are still some details to sort out with William, in the accuracy in the level of placement because William is used to playing in a certain position.

"It's up to me to be able to adapt and then to do movements in a block, as a team, and to try to do everything to plug the gaps that could occur."