I believe it would be a soliloquy. A soliloquy is defined as a person speaking to themselves without any regard for someone that may hear it (or oblivious to them).
Answer:
Soccer is an (pick one of these: astonishingly, extraordinarily, breathtakingly, incredibly) fast game.
Explanation:
You just use words that describe the action.
The answer would be true the phrase alone can be a sentence
