Medical imaging plays a valuable role in the evaluation and management of sports-related injuries. Although most acute injuries can be evaluated satisfactorily by clinical assessment and standard radiographs, some types of injuries require additional imaging for localization and characterization. The more advanced technologies (bone scintigraphy, computed tomography [CT], and magnetic resonance imaging [MRI]) provide sensitive physiological or detailed anatomic information in evaluating the athletes complaints. Stress injuries are common sports-related injuries, and they are detected most frequently by bone scintigraphy. Pars interarticularis injuries of the spine are best identified by bone scintigraphy. Other anatomic regions of stress injury include upper extremity complaints from throwing sports and lower extremity symptoms from running and jumping activities.When the management of symptoms is uncertain based on clinical assessment and plain radiographs and the area of involvement is not well defined, bone scintigraphy is extremely sensitive to injuries causing increased bone turnover. To show detailed anatomy, the cross-sectional modalities (CT and MRI) are without equal. CT allows exquisite bone detail when subtle injuries, particularly in areas of complex anatomy, are suspected at a specific site. MRI is the procedure of choice when bone marrow and soft-tissue injuries are of concern in a specific anatomic region.