Chronic calf strain injuries are an uncommon but potentially debilitating injury which may result in significant functional impairment in runners and time lost from play in athletes. In athletes and runners with previous calf injury, we believe that scarring between gastrocnemius and soleus aponeuroses, particularly in relation to the plantaris tendon, may result in altered calf muscle biomechanics that may predispose to re-injury. Clinically, these patients may present with ‘incipient’ calf tears or recurrent calf tears. We describe the clinical and imaging findings in chronic calf strain injury and report on a new technique for the management of these injuries, calf aponeurosis adhesiolysis, which may help to restore the normal biomechanical relationship between the gastrocnemius and soleus aponeuroses and the plantaris tendon during activity.