Sports scientist Stephen Dank will launch legal action against AFL club 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.

On Wednesday, ASADA reopened the investigation into former Suns defender Nathan Bock, following the sports scientist’s media admission that he trafficked peptide CJC-1295 to Gold Coast.