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The imaginary line connecting the back defenders, which determines the offside position for attackers. A flat line is easier to hold but harder to adjust; a staggered line offers cover but can create gaps. The defensive line moves up and down as a unit - holding the line is essential for the offside trap. Calling the line, stepping up, and dropping together requires constant communication.

Immediate ejection. Given for serious fouls, violent conduct, spitting, stopping a clear goal with a foul or handball, or getting a second yellow. Your team plays the rest of the match a man down and can't replace you. Usually comes with a ban for future games too. Going down to 10 men is a major disadvantage, though some teams have won despite it.

How often a player is fit and can be selected. "The best ability is availability." Players who miss lots of games through injury affect squad planning, momentum, and results. Clubs now track injury history carefully in recruitment. Hazard at Real Madrid is the cautionary tale - constantly injured, barely played.

Winning the ball back in the opponent's third of the pitch. Teams that recover possession high up get immediate attacking opportunities. It's a key stat for measuring pressing effectiveness. High recoveries often lead to shots within a few seconds because the defense is scrambled. Coaches target a certain number per game as a measure of whether the press is working.

British slang for technical skill, especially flashy stuff - quick feet, nutmegs, close control. Comes from "technique" and emerged from street football and youth culture before spreading online. "Good tekkers" means a player can do impressive things with the ball. It's informal and mostly used by fans rather than pundits or analysts.