Supraclavicular nerves are at risk in operative procedures when surgical incisions are placed over the clavicle. This report describes a 50-year-old man who developed local swelling and redness of the supraclavicular region after undergoing Weaver-Dunn reconstruction of the coracoclavicular ligament. ENMG was consistent with supraclavicular nerve injury. Since the symptoms may mimic infection, the awareness of this complication will aid the clinician to avoid unnecessary use of antimicrobials.