ACL plays a crucial role for knee stability and movement. injuries can occur during sports, especially with quick direction changes, abrupt stops, or jumping, including soccer, basketball, and tennis. minor injuries may not produce much sound or swelling, but major injuries may cause a loud popping sound and substantial swelling. women face greater risk than men, due to factors like anatomy, muscle strength, and playing style. rehabilitation and reconstruction surgery are widely used treatments for ACL injuries, aiming to restore function and strength.