Australia's first world heavyweight boxing champion Lucas Browne has expressed confusion over reports that he failed a post-fight doping test and will likely be stripped of his belt.
Browne took to Twitter after it surfaced the 36-year-old allegedly tested positive to the banned substance clenbuterol in a urine test after his fight against Ruslan Chagaev in Chechnya earlier this month.
"I don't understand today's news, and I'm seeking legal advice..." Browne tweeted.
The tests were conducted by the Las-Vegas based agency Voluntary Anti-Doping Association.
VADA sent an email confirming the positive swab to several people involved in the fight with ESPN obtaining a copy.
Initial personal thoughts on Lucas Browne's positive test to clenbuterol (1) why would a heavyweight take a weight-stripping drug?!?— Ben Damon (@ben_damon) March 21, 2016
"This letter is to advise you that the 'A' sample urine specimen number 2998060 collected from Lucas Browne ... has been analyzed (sic) for anabolic agents, diuretics, beta-2 agonists and stimulants," the VADA email said.
"The results of the analysis are as follows: Adverse. Urine specimen contains clenbuterol."
Clenbuterol is used as a metabolism booster as part of a fat-burning process.
Browne has the right to request a `B' sample, however that must be done at his own expense.
Both he and his manager failed to return calls from AAP on Tuesday morning.
Any potential ban could cost the former bouncer more than just a heavyweight title.
A bout with unified British heavyweight champion Tyson Fury was already in the pipeline, while fellow Australians such as Solomon Haumono were prepared to offer as much as $1 million for a shot at the Sydney fighter.
Browne defeated WBA regular champion Chagaev with a 10th-round stoppage after he was knocked down in the sixth on March 5.