The defensive positions in soccer are the center-back, full-back, wing-back, and sweeper. Together they form the back line that protects the goal, wins the ball back, and starts attacks from the back. This guide explains what each defender does, where they play, and the attributes the role demands.
For the full picture of how defenders fit with the rest of the team, see our soccer positions and numbers guide.
The defensive line at a glance
Most teams play a back four (two center-backs and two full-backs) or a back three/five (three center-backs with two wing-backs). The defenders' shared job is to deny space, win the ball, and build out from the back — but each position has a distinct role.
Center-back (CB) — numbers 4 & 5
The center-backs are the heart of the defense, playing centrally in front of the goalkeeper.
- Job: mark strikers, win headers and tackles, block shots, and organize the back line. In the modern game they also start attacks by passing out from the back.
- Attributes: strength, height for aerial duels, positioning, composure on the ball, and good communication.
- Styles: the "stopper" (aggressive, steps out to challenge) often pairs with a "cover" center-back (reads danger and sweeps behind).
Full-back (RB/LB) — numbers 2 & 3
The full-backs defend the wide areas on the right (2) and left (3).
- Job: stop opposing wingers, defend the flank, and — in the modern game — overlap to provide attacking width and deliver crosses.
- Attributes: pace, stamina to get up and down the line all game, crossing, and 1v1 defending.
- Modern twist: the inverted full-back tucks into midfield in possession to help control the center — an innovation popularized by Pep Guardiola.
Wing-back (RWB/LWB)
In a back five (such as a 5-3-2 or 3-5-2), the wide defenders become wing-backs — essentially full-backs with even more attacking freedom.
- Job: cover the entire flank, defending as part of a back five and attacking as a winger when the team has the ball.
- Attributes: exceptional fitness, pace, crossing, and end-to-end work rate. The most physically demanding defensive role.
Sweeper (libero)
A more traditional role, the sweeper plays behind the center-backs as a spare defender with no direct marking duty.
- Job: "sweep up" balls that get behind the defense and read danger before it develops.
- Today: the pure sweeper is rare, but the idea lives on in the ball-playing center-back and the sweeper-keeper — a goalkeeper who acts as an extra defender.
How many defenders are there in soccer?
It depends on the formation. A back four uses four defenders (two center-backs, two full-backs); a back three uses three center-backs, with two wing-backs added to make a back five when defending. See how the numbers shift across systems in our formations guide.
Frequently asked questions
What are the defensive positions in soccer?
The main defensive positions are the center-back (central defender), the full-back (wide defender, right and left), the wing-back (a wide defender in a back five), and the sweeper (a spare defender behind the back line). A typical team plays two center-backs and two full-backs.
What is the difference between a center-back and a full-back?
A center-back defends centrally in front of the goalkeeper, marking strikers and winning aerial and ground duels. A full-back defends the wide areas, stopping opposing wingers and overlapping to support the attack. Center-backs are usually bigger and stronger; full-backs are quicker and cover more ground.
What is a wing-back in soccer?
A wing-back is a wide defender in a back-five system (like a 5-3-2 or 3-5-2) who defends the flank as a full-back but pushes high to attack like a winger. It's the most physically demanding defensive role because they cover the entire length of the touchline.
What makes a good defender?
Great defenders combine positioning and anticipation (reading the game), strength and timing in the tackle, composure on the ball to build from the back, and clear communication to organize the line. Patience matters too — the best defenders delay attackers rather than diving in.
Build your defense
See where the defenders line up in any system with the free RenderFoot lineup builder, and learn the rest of the team in our midfield positions and forward positions guides.
