Friction is a necessity in playing sport. Cleats are worn so the when you step your foot connects with the ground and it does not move. It gives you grip on the other hand. If you have this grip you are able to run faster and it improves your game. That is also the reason why your running shoes have a pattern on the bottom.
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Newton's first law of motion:
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Friction is the unbalanced force.