AFL Coaching Glossary, Part 5: Defence & Pressure

AFL Coaching Glossary, Part 5: Defence & Pressure

Zones, references, +1s, and how coaches describe shutting the opposition down.

Defence in AFL isn't just about who marks who. It's about pressure on the ball, positioning when you don't have a direct opponent, and the structures the whole team holds to keep the opposition's chains short. This article covers the language of defending — both as a unit and as an individual.

Terms marked Advanced are deeper tactical concepts.

Zone defence

A defensive system where players defend an area of the ground rather than a direct opponent. As the ball moves, players slide to stay in the right zone. Zones are good for compressing space and discouraging long kicks, but they can be exploited by quick switches.

Man on man + reference Advanced

A hybrid defensive system: every defender has a direct opponent ("man on man"), but they also have a "reference" position they hold relative to the ball. The reference takes priority — if your opponent runs to the wrong place, you don't follow them, you stick to your reference.

Reference player Advanced

In a "man on man + reference" set-up, the reference player is the one whose position matters more than their opponent. They hold a specific area of the ground (often deep defence or the goal mouth) regardless of where their direct opponent runs.

Goal side / Goal side starting position

The side of an opponent that is closer to the goal you're defending. A defender is "goal side" when they're between their opponent and the goal — the safe position. "Goal side starting position" is the cue to make sure you're set up there before each contest begins.

Pressure rating

A number that tries to put a value on how much pressure your team applied during a game or quarter. Powercoach calculates pressure rating by looking at every clearance, intercept and shot, weighting each by how successfully your team made the opposition's life difficult.

Intercept pressure

A measure of how much pressure your team applied to opposition possessions that ended in your team intercepting. High intercept pressure means you didn't just luck into the ball — you forced the turnover.

Clearance pressure

The pressure applied to the opposition winning the ball at a stoppage. High clearance pressure means even when they got first hands, they couldn't move the ball cleanly.

Shot pressure

The pressure applied to an opposition shot at goal — a hand in the face, a tackle, a smother attempt. Pressured shots are far less likely to score than unpressured ones.

Frontal pressure

Pressure applied from in front of the ball-carrier — making them turn around, slow down, or kick blindly. Frontal pressure is the most disruptive kind because it cuts off the kicker's view of their forwards.

Chase pressure

Pressure applied from behind a ball-carrier — running them down from behind, tackling them as they kick, or forcing them to release earlier than they wanted. Chase pressure is what coaches mean by "running both ways".

Press pressure Advanced

A coordinated forward-half press, where all forwards push higher up the ground to stop the opposition from getting easy uncontested marks in defence. The "press" is a team effort, not an individual one.

Outnumber

Having more players than the opposition in a key area of the ground. "We outnumbered them around the ball" means more of your players were at the contest. Outnumbers can be defensive (extra defender behind the ball) or offensive (extra runner ahead).

Numerical advantage / numerical outnumber

The same thing as "outnumber", just stated more formally. Often used in post-game review when coaches are dissecting why a chain worked or didn't.

Even numbers

Equal player numbers between the two teams in an area — usually used to describe stoppages or in front of the ball. "Holding even numbers F50" means making sure you have as many forwards as they have defenders.

Equalising numbers

The act of running back into a contest to make it even when you're outnumbered. Equalising numbers is hard work and is one of the things that separates good defensive teams from average ones.

"Seventh defender" / +1 defender Advanced

An extra player who drops behind the ball to give the defence a one-player surplus. The standard six defenders become seven, hence "seventh defender". Coaches use it when they're worried about deep entries or when they want to suffocate F50 entries.

Drop-off player Advanced

A defender who deliberately leaves their direct opponent to fill space or intercept. A "drop-off" can be at a stoppage (dropping off your opponent to crowd the contest) or in open play (leaving your forward to intercept a kick).

Loose at the back Advanced

The deepest defender — the one who isn't holding a direct opponent and roams behind the ball as an intercept marker or sweeper. Most teams have a designated "loose" who plays this role full-time.

Density Advanced

How many bodies are crammed into a small area of the ground. "Adding density at the stoppage" means putting more players around the contest. High density makes it hard for the opposition to clear cleanly and is a defensive tool.

Free pocket Advanced

Deliberately giving up one pocket of the forward 50 (usually by leaving it un-marked at a kick-in) to force the opposition into a predictable target. It gives them an easy short option but reduces their corridor and switch options.

"Pull the zone deeper" Advanced

A cue to a zone defence: drop everyone back closer to your goal. It gives the opposition uncontested possession further up the ground but compresses the area near goal so they can't score easily. Coaches use it to protect leads or absorb pressure.

"Read the cues"

A general defensive cue — meaning, watch the opposition's body language and movements, and adjust before the ball arrives. "Reading the cues" is what separates great intercept defenders from average ones.

"Kill the area" Advanced

A cue to leave your direct opponent and rush the contest where the ball is about to land. "Killing the area" means crowding it with bodies so the opposition can't clean up the ball easily.

"Life and death defence" Advanced

A motivational cue more than a tactical one — used when the opposition is about to take a shot or about to win a critical clearance. It means: defend as if everything depends on this contest. Coaches use it sparingly so it doesn't lose impact.

Previous: Part 4 — Forward Craft Next: Part 6 — Player Roles & Mix Index: The AFL Coaching Glossary