An Australian coach who works with the Chinese Swimming Association has rejecclaims of systemic state-run doping, saying it is "so far from anything I have seen".
The sport was rocked at the weekend by revelations that 23 Chinese swimmers tested positive for trimetazidine (TMZ) ahead of the Tokyo Olympics in 2021.
TMZ is a prescription heart drug but it is banned in athletes because it can enhance performance.
The swimmers were allowed to compete in Tokyo after world governing bodies accepted China's findings that they had ingested it unwittingly from food during a meet in late 2020 and early 2021.
Several went on to win medals, including gold, and many are in line to compete at the Paris Olympics this summer.
Denis Cotterell, who steered Australian Grant Hackett to multiple Olympic golds and also coached drug-tainted Chinese swimmer Sun Yang, told The Sydney Morning Herald he disputed "any suggestion of anything orchestrated".
"Am I confident that it's not dastardly? Not for one minute (do I believe that). I wouldn't be here (if it was)," Cotterell told the newspaper by phone from the pool deck of the Chinese Olympic trials in Shenzhen, in comments published Monday.
"I am happy to say I'm absolutely in support of my swimmers and dispute any suggestion of anything orchestrated," the 74-year-old said.
World anti-doping agency Wada said over the weekend there was "a lack of any credible evidence" to challenge China's version of events.
However, the United States Anti-Doping Agency called news of the failed tests "crushing" and blasted Wada's lack of action as "a devastating stab in the back of clean athletes".
Staunch anti-doping campaigner Hackett also weighed in, hitting out at what he said was a lack of transparency.
"The fact we are sitting here – what, three years later – and it's only coming out now through the wrong channels, not through official channels, just makes me feel very unsettled," he told Australian media.
WADA STANDS FIRM
The failed tests were first reported by The New York Times, working with German broadcaster ARD, on Saturday, citing a review of confidential documents and emails.
ARD aired a documentary on the subject Sunday, with the Montreal-based Wada issuing a fresh statement afterwards.
"The agency still stands firmly by the results of its scientific investigation and legal decision concerning the case," it said.
Cotterell, who has had an on-off association with Chinese swimming for more than a decade, said he was speaking from first-hand experience.
"I see what they (the swimmers) go through, I see the measures, I can tell you the stories. I know the facts and I am comfortable," he said.
"The suggestion that it's systemic is so far from anything I have seen here the whole time.
"That suspicion was unfortunately earned from 30 years ago in the 1990s. They are so adamant on having clean sport."
CHEQUERED HISTORY
Chinese swimming has a chequered doping history. Seven Chinese swimmers tested positive for steroids at the 1994 Asian Games in Hiroshima.
In 1998, swimmer Yuan Yuan was banned after Australian customs officers discovered a large stash of human growth hormone in her bags at the world championships in Perth.
More recently, three-time Olympic champion Sun is just about to finish a second doping ban. His first, in 2014, was for taking TMZ.
China's anti-doping authority and swimming association have yet to publicly comment.
Cotterell said he was not authorised to speak on their behalf and was "on a hiding to nothing" by giving an interview.
But he said he wanted to fight for the integrity of himself and Chinese swimming.
"I can understand if they (other athletes) are (upset), that's their prerogative," he said.
"I sympathise on other fronts for other reasons. How it was handled, that's the point of conjecture. I know what they have to endure here.
"It's sad that their names (the swimmers) are caught up in unfortunate circumstances beyond their control."