Michael Phelps has called for a lifetime ban for anyone who tests positive for a banned substance and says that China should not have been allowed to compete in the Olympic pool at Tokyo or Paris at a time when its swimming program, should have been under investigation.

The most decorated Olympian in history believes that the only response to the latest China Crisis that has plummeted trust in the global anti-doping regime to what Katie Ledecky has described as "an all-time low" is a one-strike-and-you're-out policy.

“If you test positive, you should never be allowed to come back and compete again, cut and dry,” Phelps told the Associated Press (AP). “I believe one and done.”

Read more about the backdrop to all of that in the China Diaries.