This document presents a case of a 19-year-old male who injured his left knee while playing soccer. He felt immediate pain and swelling in his left knee after landing awkwardly from a jump. Examination found swelling and tenderness in the left knee with limited active movement. Differential diagnoses included ACL injury, meniscus injury, and fracture. Imaging with MRI confirmed a complete tear of the ACL along with other injuries. Nonsurgical treatment included RICE therapy while surgical reconstruction of the ACL may be required.