We present a 19-year-old male motorcyclist slipped and bumped his back against the asphalt. He was presented to our emergency department with dramatically deteriorated vital signs. Chest x-ray and computed tomography (CT) showed left diaphragmatic rupture with intrathoracic herniation of stomach and spleen. Exploratory laparotomy was performed. Our article aims to remind the physical and radiological findings of the diaphragmatic rupture to emergency physicians.