Counter-attacks happen in the seconds after winning possession, when the opponent is still in an attacking shape and out of position.
They rely on 2-3 fast runners, clean ball progression (long ball or carry) and a striker who can hold, turn or finish in tight space.
The biggest counter-attacking teams — Mourinho’s Inter, Atlético under Simeone, Leicester 2015/16 — all combined a low block with a fast front three.