France coach Didier Deschamps believes silencing two players will be key to defeating Belgium in their World Cup semifinal.

Deschamps says Manchester United striker Romelu Lukaku and Chelsea's Eden Hazard are their two most dangerous players.

Deschamps said: "Belgium are young, but they are maturing. We know it will be a tough match.... Romelu Lukaku's physicality can trouble any defence. We can't leave him any space because he's a quality player.

“As for Eden, I've already played against him when he was at Lille. He has great qualities and is a good dribbler. We can't give him any space either, so it is going to take a collective effort."