How did Sly get muslce and ripped body? Well apparently his training began when, inspired by bodybuilder and actor Steve Reeves. How he transform himself into a specimine of physicality. Much like Bruce Lee this involved pushing his body to the absolute limit with a regime that even Stallone now admits was ill-informed. The drive that made both Bruce and Sly icons also has a habbit of over-loading the body with work. Almost caused partly by his extreme over-training.