I test the limits of endurance, pushing athletes to their breaking point. I am not a visible obstacle. What am I?

Category: Sports · Difficulty: hard

Hint: Think about what often affects performance from within.

Answer

Mental fatigue

Explanation

Mental fatigue can greatly impact an athlete's performance, affecting concentration and decision-making.

This is a hard sports riddle — a tricky one that takes a little thought. The answer is Mental fatigue.

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