The Sydney Roosters reportedly sacked a sports nutrition company after learning six players, including Kiwis winger Roger Tuivasa-Sheck, had returned blood tests with elevated readings for the banned substance Human Growth Hormone.
In a Fairfax Media report, it is alleged details of the players' blood test results were found on the phone of an organised crime figure after being seized by law enforcement officers.
The firm, Nubodi, was hired by the club last year in an attempt to finetune detox diets for the players, the club's chief operating officer Brian Canavan confirmed.
Canavan said Roosters players were tested for human growth hormone without the consent of club officials or staff.
Boyd Cordner, Sam Moa and Tuivasa-Sheck were three players named in the Fairfax report who had elevated HGH levels.