Create a 2-minute cinematic 3D medical animation in 4K (16:9) about an Anterior Cruciate Ligament (ACL) injury in a football player. Scene 1: Professional football stadium at night. A young athlete sprints, plants his right foot, pivots sharply, the knee twists inward while the foot stays fixed, followed by a dramatic POP sound. Slow motion. The athlete collapses in pain. Scene 2: Transition through the skin into a realistic transparent 3D knee. Show femur, tibia, patella, menisci, ACL, and PCL. Highlight the ACL in glowing blue with labels. Display the anteromedial and posterolateral bundles. Scene 3: Animate normal knee flexion and extension. Show the anteromedial bundle tightening during flexion and the posterolateral bundle tightening during extension. Use arrows to demonstrate anterior tibial translation being restrained by the ACL and illustrate rotational stability. Scene 4: Replay the injury in slow motion. Show valgus loading, internal tibial rotation, quadriceps contraction, increasing strain in the ACL, collagen fibers stretching, and finally a complete ligament rupture with realistic biomechanical detail. Scene 5: Show immediate swelling, pain, and instability. The athlete attempts to stand but the knee buckles. Scene 6: Inside an orthopedic clinic, demonstrate the Lachman test, Anterior Drawer test, and Pivot Shift test. Use transparent anatomy overlays to show abnormal anterior tibial translation. Scene 7: Show MRI acquisition. Display sagittal MRI images and highlight the torn ACL in bright red. Scene 8: Show physiotherapy rehabilitation including hamstring curls, balance board exercises, neuromuscular training, resistance exercises, jogging progression, and return-to-sport drills. Scene 9: Return to the football field. The athlete runs, pivots, and scores confidently. Fade to black with the text: "Anterior Cruciate Ligament Injury Early Diagnosis Structured Rehabilitation Safe Return to Sport" Style: Pixar-quality 3D realism, National Geographic medical documentary style, smooth cinematic camera movements, realistic anatomy, volumetric lighting, professional orthopedic education quality, medically accurate knee biomechanics, dramatic orchestral soundtrack, realistic crowd ambience, heartbeat during injury, clean medical labels, no cartoon effects.