By Hilmar Rojas

As previously reported, Lucas Browne, who recently captured the 'regular' world heavyweight championship of the World Boxing Association, has tested positive for Clenbuterol - according to the Voluntary Anti-Doping Association (VADA).

The World Boxing Association and their world championships committee is hoping this is nothing more than a misunderstanding. The sanctioning body will not make a ruling on whether or not to strip Browne until the result comes in from his B-sample.

His A-sample reportedly tested positive following the knockout victory over Ruslan Chagaev earlier this month, but no testing has been done on the B-sample because VADA is demanding Browne pay for the second test.

Browne responded to the reports on Twitter, saying he was seeking legal advice.

A letter obtained by ESPN written by VADA president Dr Margaret Goodman to the organisers of the Browne-Chagaev fight read: "This letter is to advise you that the 'A' sample urine specimen number 2998060 collected from Lucas Browne ... has been analyzed for anabolic agents, diuretics, beta-2 agonists and stimulants.

"The results of the analysis are as follows: Adverse. Urine specimen contains Clenbuterol.

"Mr Browne has the right to promptly request analysis of the 'B' sample at his expense."

Clenbuterol is used as a metabolism booster to help burn fat.

Browne, who had to dig deep to overcome a disastrous sixth round and wobbly start against Chagaev, improved his record to 24-0 (21 KOs), while Chagaev dropped to 34-3-1, 21 KOs.

It meant Browne won the so-called regular version of the WBA belt, while Britain's Tyson Fury is considered the WBA's "unified" champion, since he also holds the WBO/IBO versions.

Browne's title promised much with the prospect of potential mega-fights against Fury and David Haye now very much in doubt.