9) Andreas Krieger
Andreas Krieger was a German shot putter who competed as a woman on the East German athletics team. From his early teens he was given
anabolic steroids without his knowledge, which lead him to become more and more masculine in appearance and attitude. Krieger retired from the sport in 1990 and underwent sex reassignment surgery in 1997, and he has publicly said that he wishes he hadn’t been drugged so that he could have discovered for himself what his gender preference was.