US anti-doping chief who caught Lance Armstrong says swimmer Shayna Jack is not a drug cheat

Shayna Jack is ploughing through the water, following the black line up and down the pool, as she has for most of her life. Always wanting to go faster and then faster again until she is the fastest freestyle swimmer in the world.

It is early afternoon in Brisbane, and she is glancing up at the clock. Not to check her speed but because she is here on borrowed time. Jack can’t be anywhere near any swimming squads or registered coaches. Ostracised from the sport that has been her life, she has to swim alone during public hours.

Once a prodigy, now she is fighting to ever swim competitively again, her reputation in tatters.

“One day,” she tells Australian Story, “I was an elite athlete and the next day everything that I knew had been taken…