Shayna Jack – Wikipedia

Shayna Jack (born 6 November 1998) is an Australian swimmer. She competed at the 2017 World Aquatics Championships , where she won two silver medals and a bronze in the relay events. [2] [3] [4] In June 2019, Jack tested positive for a banned substance during a routine doping test and was subsequently suspended by Swimming Australia .

https://en.m.wikipedia.org/wiki/Shayna_Jack