Septic arthritis is one of the most common orthopedic emergencies. In most cases, the joints affected are large (e.g., knees, hips, and ankles). The presentation of septic arthritis in the sternoclavicular joint (SCJ) has a relatively low prevalence rate, most commonly found in intravenous drug users. Staphylococcus aureus is the most common pathogen identified. We report a case of a 57-year-old male with a known case of diabetes mellitus, hypertension, and ischemic heart disease who complained of chest pain and was later found to have right-side SCJ septic arthritis. The procedure involves aspiration of pus using ultrasound guidance as well as irrigation of the right SCJ. The result of a pus culture from the right SCJ (a rare joint to be affected) was Salmonella, which is an atypical infection, specifically in non-sickle cell disease patients. The patient was treated with a specific antibiotic covering this pathogen.