The 100-metre freestyler mysteriously withdrew from the 2019 World Championships in Gwangju just ahead of the competition taking place.
Originally, Jack posted to Instagram she would be leaving due to ‘personal reasons’.
However, on Saturday night, a media release sent by Swimming Australia said after the organisation was made aware of the adverse test result they “immediately took action” to suspend Jack from the Australian team.
The out-of-competition test was conducted on June 26.
Under the Swimming Australia policy, any athlete under provisional suspension during an ASADA investigation cannot take part in any competition.
While all details will remain confidential until ASADA has completed their investigations, Jack took to Instagram.
“It is with great sadness and heartache that I had to leave due to allegations of having a prohibited substance in my system,” Jack wrote.
“I did not take this substance knowingly.”
Jack has been an integral part of Australia’s 4x100m freestyle relay team alongside Cate Campbell, Bronte Campbell and Emma McKeon.
While Swimming Australia will continue to provide…
