Introduction: Avulsion fractures of the anterior inferior iliac spine (AIIS), anterior superior iliac spine (ASIS), tuberositas ischii, iliac apophysis, and reflected head of rectus occur in children because of apophyseal cartilage failure. In this report, we present two cases of avulsion fractures of the AIIS and tuberositas ischii. Case Report: Two amateur football players who are 15 and 16 years old presented to an emergency clinic with groin pain after kicking the ball during a football match. Their passive hip motions were normal, whereas active hip motions were painful and right groins were painful during deep palpation. Radiological examinations revealed avulsion fracture of AIIS in one patient and avulsion fracture of the tuber ischium in the other patient. We started analgesic treatment in both patients with them lying in the supine position with the hip in 45 degree flexion. Patients were mobilized after 2 weeks with elbow crutches. Four weeks later, we started active hip motions. Conclusion: Avulsion fractures of the ASIS and tuber ischiadicum are rare cases in adolescent sportsmen. These injuries can easily be overlooked or misdiagnosed. A delay in diagnosis may cause hip pain and lower the performance of sportsmen.