THE AUSTRALIAN Sports Anti-Doping Authority has reopened its investigation into Nathan Bock and Gold Coast.
The announcement follows a News Corp Australia report quoting sports scientist Stephen Dank in which he claimed to have provided banned substance CJC-1295 to Gold Coast's then high-performance manager Dean Robinson.
ASADA said it contacted Dank on Wednesday, but he had refused to comment further.
Bock was cleared last week of doping by ASADA and allowed to continue coaching NEAFL team Southport Sharks.
Dank has also said he will take legal action against Gold Coast for unfair dismissal after being sacked by the club in 2011.
Dank was with the club for six weeks that year in the pre-season, however, the Suns say he spent just five days working for them before he was dumped ahead of their first NAB Challenge match in Sydney.
"I will launch action," Dank told Fairfax media.
"There is a no 'could' about that. We will be commencing action against the Suns. I was unfairly dismissed."
Dank said he had still not been told the reasons for his dismissal, which preceded him joining NRL team Cronulla early in the same year.
ASADA has defended its decision to reopen the Bock case, saying in a statement on Wednesday: "(ASADA) notes overnight reports that Mr Dank has allegedly admitted to a journalist that he trafficked prohibited substance CJC-1295 to the Gold Coast Suns.
"ASADA considers all information relating to potential anti-doping violations, and this new information, particularly its veracity, will be assessed by our investigation unit.
"Over the last three years, Mr Dank has consistently refused to speak to ASADA's investigators.
"ASADA spoke with Mr Dank today (Wednesday), and he again refused to offer any assistance or information.
"Mr Dank's alleged admissions overnight are starkly at odds with his previous position on the matter, as ASADA notes he is currently appealing the AFL Tribunal's finding that he attempted to traffic CJC-1295 to the Gold Coast Suns.
"ASADA needs reliable evidence and testimony in order to be able to bring forward cases of possible anti-doping violations.
"The journalist in question has been approached today by ASADA and requested to provide the details of conversations he has had with Mr Dank."
Robinson and Dank worked for the Suns in late 2010 when Bock, the start-up club's star signing, was being treated for an Achilles injury.
The pair then reunited at Essendon in late 2011 and played key roles in establishing the Bombers' pharmacologically experimental drugs program.
AFL.com.au has contacted Gold Coast for comment.
