Top scorers meet best defence in Brazil v Belgium clash

July 2, 2018; Rostov-On-Don, Russia; Belgium player Marouane Fellaini (8) heads the ball to score a goal against Japan in the round of 16 during the FIFA World Cup 2018 at Rostov Arena. Mandatory Credit: Chen Cheng/Xinhua/Sipa USA via USA TODAY Sports

SOCHI, Russia (Reuters) - Belgium's quarter-final battle with Brazil will be a classic encounter between an unstoppable force and an immovable object when the tournament's joint best defence comes up against its most free-scoring attack in Kazan on Friday.

Brazil have conceded only one goal in this World Cup, the equal most stingy rearguard along with Uruguay, and allowed only five shots on target in four games, the fewest of any side.