Essendon coach John Worsfold says he is uncertain whether quarantined defender Conor McKenna actually has COVID-19 but maintains his confidence in the strict testing regimes in place for AFL clubs.
McKenna tested negative to the coronavirus several times before an irregular result last Friday led him to being re-tested on Saturday, with that result coming back positive.
He has since been in quarantine and returned a negative test, which was confirmed on Tuesday night.
McKenna is still being treated as a positive case by Victoria's Department of Health and Human Services.
"There's some doubt in my mind," Worsfold told reporters on Wednesday.
"I don't know if there's doubt in other people's minds but we're waiting to find out exactly what it (the latest negative result) means.
Image - Facebook/Essendon Football Club.