Which of the following is not a component of skill-related fitness?

Flexibility

Explanation:  

The six components of skill-related fitness are Agility, Balance, Speed, Power, Coordination and Reaction time

Agility is a skill that would assist the team players to dodge their opponents

Balance is a skill that would assist to prevent game players from falling over at speed

Speed is a skill that would assist the game players to move into position or get away from opponents quickly.

Power is a skill that would assist to jump higher, throw far or sprint quickly.

Coordination is a skill that would assist to move quickly and smoothly and will help to control the body during physical activity.  

Reaction time is a skill that would assist to make a fast start.