An uncommon ankle sprain

Objective:Ankle sprain is the most frequently occurring acute injury in tennis, accounting for 20–25% of all injuries. In the current paper, we assess the cause of ankle sprain and suggest possibilities to be considered during diagnosis.Methods:We assessed a professional tennis player with a partial tear of the long peroneal tendon after an ankle sprain by physical exam, X-ray and MRI.Results:Conservative treatment by means of soft cast and propriocepsis training led to full recovery.Conclusion:Peroneal tendon disorders must be part of the differential diagnosis after ankle sprain in the professional athlete.