Alexis Appelquist, Huffines ProducerOne moment you’re sprinting down the basketball court. You stop sharply, left leg planted, and spin around, ready to be on the defense. Before you even know what has happened, you’re on the ground, clutching your knee in shock, unable to describe the sensation but acutely aware of the sinking feeling that something is wrong. Maybe you collided with an opponent, maybe you heard a loud pop, maybe your entire professional career is on the line or mayb...