Centre half is a position in football where players are expected to defend their side against the opposition team while helping their team score goals. It's also called center back, stopper, or central defender. The term center half originated from when there were only two defenders and one played centrally. Stopper is often used in American football and refers to a defender who stops the attacking players. Central defender is a more generic term used to describe a defender who plays in the center of the defense. In some countries, it's also called centrehalf back or middle defender. No matter the term, the player's role remains to protect their goal and help the team win.