I Feel Your Pain, Diores
Then fate fell upon Diores, son of Amarynceus, for he was struck by a jagged stone near the ankle of his right leg. He that hurled it was Peirous, son of Imbrasus, captain of the Thracians, who had come from Aenus; the bones and both the tendons were crushed by the pitiless stone.
That would be his peroneus brevus and peroneus longus tendons, most likely.
I can relate. See: “Return to Peroneus Brevis Hill”.