The ACL is a ligament found inside the knee joint that runs diagonally in the middle of the knee. Its job is to regulate the back and forth motion of the knee and prevent the tibia from sliding in front of the femur. Without the ACL, the knee tends to buckle, becomes unstable, and limits the overall movement of the knee, usually preventing it from fully extending or bending (“Anterior Cruciate Ligament”). What this means for athletes is that without an ACL, one cannot pivot, cut, jump, or stop suddenly, because there is no ligament to hold the tibia in place, and the athlete is no longer able to control his or her movements. This means that injury to the ACL almost always requires surgery and months of recovery in order to be able to return to