The greatest striker in the history of the soccer betting World Cup, Ronaldo suffered a severe injury to his left knee that could end his soccer bet career. The injury occurred in AC Milan’s 1-1 soccer betting draw at home to Livorno on Tuesday night. He was carried by stretcher off the field and transferred to the hospital. Reports are that he severed the tendon in his left knee. Ronaldo has already suffered this type of injury twice in his soccer bet career but that was to his right knee.