I remember Sosa well when he came up after being traded to the Sox. He was a little guy with a big swing with warning track power at best who hit 11(!) homers as a career best in the minors. And I should believe that steroids didn't have any effect in seeing him crank 60+ homers built like a fullback?
To deny that steroids had a huge effect on a offensive outburst that was unprecedented and slowly went away when a stricter testing policy was put in place is oblivious.