Answer:
It would improve the player’s game.
Explanation:
It appears that motor imagery (MI) contributes to the enhancement of motor performance in athletes. Evidence suggests that directing the athlete's attention to the effects of movement on the environment is better than focusing on the action per se. In this case, the game of a tennis player is improved due to the fact that the player focuses on mental imagery.
I believe the answer is: <span>In laboratory settings, people can process and respond to information outside of their awareness.
This proof that on average people do not fully taken advantage of our full cognitive capabilities. Mostly happen because we imposed a personal limitation in what we could and couldn't do before we make a full effort to do them.</span>