In case you don't know the story....
One of Magni’s greatest achievements also came in a race he did not win. Never a great climber but known for his furious descents, he was competing in his last Giro d’Italia, in 1956, when he crashed on a downhill during the 12th stage and fractured his collarbone. He continued to race, wrapping a tire tube around his handlebars and holding the end in his mouth to help his weakened left arm control the bike.