France coach Didier Deschamps admits Chelsea midfielder N'Golo Kante was key to victory over World Cup opponents Argentina.
Deschamps tactically masterminded a way to keep Barcelona star Lionel Messi quiet for Argentina.
"I think my Argentinian counterpart wanted to give him more freedom to come behind our central midfielders, but we adapted to neutralise him," he said. "[N'Golo] Kante was always marking him.
"We had two chances; stopping him getting on the ball, which we did a lot, and when he had it we had to have one on him and one just off him.
"He was subject to a unique vigilance. We knew the connection between [Javier] Mascherano, [Ever] Banega and Messi, if you want Messi to have less influence you have to block the other two."