The main presentation of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is respiratory. However, there are extrapulmonary manifestations such as myocardial and pericardial injury. The term long COVID syndrome describes the persistence of symptoms in patients who have recovered from the infection. A 31-year-old man presented with mild coronavirus disease 2019 (COVID-19) symptoms for three days. Two weeks later, he developed chest pain, pericardial rub, and pericardial effusion; he underwent echocardiography showing pericarditis and an MRI which revealed inferoseptal hypokinesia and mild global myocardial hyperintensity, cardiac scintigraphy with Ga-67, and an inflammatory process in the myocardium. He was treated with methylprednisolone pulse (1g IV/day) and tapering prednisone (5 mg/day), with gradual evolution of symptoms for one year. In conclusion, this is a patient without comorbidities with clinical, laboratory, and imaging diagnosis of myopericarditis as a manifestation of long COVID syndrome.