Fitness

Carefully controlling how much a player plays to prevent injuries. Involves resting players who've played too many minutes, monitoring training loads, and sometimes sitting out less important games. Modern sports science tracks everything. Fans complain when their best players get rested, but the alternative is burning them out. The fixture congestion in modern football makes it more important than ever.

A player who's always getting hurt. Whether it's bad luck, poor training habits, or physical fragility, the pattern repeats. Clubs hesitate to invest heavily in injury-prone players because you can't rely on them. The label can be unfair when injuries are random, but some players genuinely seem to break down every few months.

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.

Sprinting back to help defensively after being caught up the pitch. Full-backs who've pushed forward, midfielders who've joined an attack, strikers who lose the ball - they all need to make recovery runs. The best players do it without thinking, even when tired. Recovery runs prevent counters and show commitment. Players who don't make them become defensive liabilities.