A centre-back is a defensive player in football (soccer) who primarily plays in the central area of the defense. Their main responsibilities include blocking opposing attackers, winning aerial duels, and clearing the ball from the defensive zone. Centre-backs often work in pairs and are crucial for maintaining the team's defensive shape. In addition to their defensive duties, centre-backs may also contribute to the attack by initiating plays from the back. They often possess good passing skills and can help transition the ball to midfielders or forwards. Strong communication and positioning are essential traits for a successful centre-back.