Lucas Browne has been stripped of his WBA Heavyweight Championship after a 'B' sample came back positive for a banned substance.
The 37-year-old boxer became the first ever heavyweight champion from Australia when he stopped Ruslan Chagaev in the 10th round of their fight back in March.
However, in the aftermath of the fight, Browne returned a positive 'A' sample for clenbuterol - a banned substance.
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Browne has also been suspended for six months after his second sample came back positive, with the New South Wales native replying to the news on Twitter.
"I'm leaving everything to my lawyer, Mr Leon Margules. I thank everyone for their support, especially the people and fans of Australia."
The WBA wasted no time in taking the title off Browne and handing down the suspension.
"When that six-month period is over, Browne's status will be reconsidered, depending on whether or not he intends to return to the ring," the WBA said on their website.
"Browne did challenge the 'B' sample, but there were no flaws in the VADA process," WBA president Gilberto Mendoza told ESPN.com. "It was disappointing since he was the first heavyweight champion born in Australia."
New Title Fight
With the belt now vacant, it looks like Chagaev could be set to reclaim his title in super quick time.
The Uzbeki is now obligated to fight mandatory challenger Fres Oquendo, who lost a disputed majority decision to Chagaev in July 2014 and has not fought since. The camps were ordered to begin negotiations with the fight mandated to take place within 120 days.
Browne will return from his suspension in September, at which point he will probably either challenge for the title straight away or be forced to fight a qualifier.