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Arsenal's English midfielder Alex Oxlade-Chamberlain receives medical treatment during the UEFA Champions League round of 16 1st leg football match...

Achilles’ problems

Achilles tendinopathy is a condition which causes swelling, stiffness, pain and weakness of the Achilles tendon and can be caused in a variety of ways, including overuse of the Achilles tendon, wearing inappropriate footwear, poor training techniques as well as having a high-arched foot or poor flexibility.