The ACL stabilises the knee for cutting, twisting and leaping and pivoting exercise. The anterior cruciate ligament is in the middle in the knee joint. After you tear an ACL, you might generally come to feel or hear a pop, come to feel the knee shift out of place and https://www.theorthopaedicandpainpractice.com/what-should-i-do-if-i-have-a-collateral-ligament-injury-of-the-knee/?_gl=1*xbbxlb*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB