The purpose of this chapter is to review the pertinent evaluation and management of traumatic fractures of the tibial and fibular diaphyseal (shaft) and proximal fibula as they relate to sports. High-impact or high-speed sports such as soccer, rugby, and skiing have the highest incidence of these injuries. Male athletes are more commonly affected than females. Although a majority of these fractures can be managed conservatively, surgical management can be warranted. Open fractures, neurovascular compromise, and suspicion for compartment syndrome may require emergent surgical intervention. Tibial diaphyseal fractures are the most common reason for developing compartment syndrome. Fibular fractures rarely result in lateral compartment syndrome. Malunion, nonunion, and refracture rates are low, but inappropriate management such as early return to sports may result in these complications.