''I just know what we do internally, and it's all above board. It's all perfect,'' he said.
''We've got some great staff members in place so, to tell you the truth, I'm not really concerned about anything else. As long as we are doing everything right, which we are, then I'm more than happy with that.''
Meanwhile Drew Petrie believes the AFL has made the right decision in its approach to recent doping allegations.
Speaking to the The Age’s Matt Murnane, the North Melbourne vice-captain weighed into the debate.
''I think releasing the information that has come to light just recently - that it is just the one club and one other player - is probably the right thing to do,'' he said.
''Because it means it is not as widespread as everybody had sensationalised. It's very, very isolated, so I think it is a positive to release that.''
AFL CEO Andrew Demetriou says the league will be speaking with all clubs to express concerns, as all clubs have “vulnerabilities” to illicit drugs.
The Roos have previously stated to various media, “We have no issues or concerns with the fitness, conditioning and medical programs in place at North Melbourne.”
