ALMOST a week after the AFL suspended Lachie Whitfield and two former Greater Western Sydney staffers, ASADA has confirmed it's comfortable with the League's stance.

The national anti-doping watchdog confirmed on Monday it wouldn't pursue any further action against Whitfield, former football boss Graeme Allan or former welfare officer Craig Lambert.

"I have considered the brief of evidence compiled by the AFL following its investigation of allegations against Graeme Allen, Craig Lambert and Lachlan Whitfield," ASADA chief executive Ben McDevitt said in a statement provided to AFL.com.au.  

"I have also received formal notification of disciplinary action and suspensions imposed by the AFL under its rules. 

"I note the investigation revealed no use or intended use of performance-enhancing drugs. 

"Given the circumstances, I do not believe pursuit of additional action under the AFL anti-doping rules is warranted."

The trio was dealt with under the League's all-encompassing 'conduct unbecoming' rule as opposed to the anti-doping code.

Whitfield, 22, was suspended for six months.

Allan and Lambert were banned for 12 months.

The suspensions followed an incident last year where Allan and Lambert arranged for Whitfield to stay at Lambert's house in order to avoid the possibility of a drug test out of fear he may fail it.

Allan has subsequently quit his new position as Collingwood football manager.

The AFL is yet to rule whether GWS will be stripped of any selections in Friday night's NAB AFL Draft.