Arrhythmogenic right ventricular dysplasia (ARVD) is an inherited cardiomyopathy characterized by right ventricular structural abnormalities, dysfunction and ventricular tachycardia (VT) secondary to fibrofatty replacement of the myocardium [1]. We report a male teenager with negative family history, presenting with sustained VT after sports practice. He had waxing and waning troponin levels without myocardial ischemia and satisfied the revised task force criteria for diagnosis of ARVD. ARVD needs to be strongly considered in the differential diagnosis of phasic troponin elevation in the absence of myocardial ischemia.