Zagueiro
In short
A central defender in football who plays in the heart of the defensive line to stop attackers.
In plain words
This player stays near their own goal to block shots and tackle opponents. They work with the goalkeeper to protect the area in front of the net.
A simple example
A tall defender jumps to head a ball away from the goal line during a corner kick. They then pass the ball to a midfielder to start a new attack.
Why it matters
A strong defence is vital for winning matches and keeping a clean sheet. Without good central defenders, a team is easily broken down by fast strikers.
Easy to mix up
Do not confuse them with a full-back, who plays on the wide sides of the pitch rather than in the centre.