AN UNDERMANNED North Melbourne won't fall for the trap of focusing solely on stopping Fremantle superstar Nat Fyfe on Saturday night, with Roos coach Brad Scott saying the Dockers boast other midfield stars who demand respect.

North will take on Freo at Domain Stadium without three of its best midfielders: captain Andrew Swallow (thumb), Daniel Wells (Achilles tendon) and Nick Dal Santo (hamstring).

But Scott told reporters on Wednesday that North was confident it had the depth to cover those key losses, pointing out that the Roos had beaten the Dockers in Perth in round six last year without Swallow, Wells and 2013 best and fairest winner Scott Thompson.

Scott freely admitted the ladder-leading Dockers presented "a significant challenge" but said the Roos couldn't afford to get caught up in the "mystique" of Fyfe, despite his blistering start to 2015 that many people think has lifted him above Gary Ablett as the AFL's best player.

"We've some pretty good midfielders as well who are in good form, so we'll just take him on," Scott said of Fyfe.

"Clearly we've got a lot of respect for him as everyone does, but sometimes the mystique can build to a point where people think he's unstoppable.

"He's a really good player but every team's got really good players."

Scott said North's match committee had yet to decide whether to run a hard tag on Fyfe.

"I've said before with other teams that have got really good individuals, that if you focus purely on them you take your eye off (David) Mundy, and I think that's disrespectful to Mundy," he said.

"I think it's disrespectful to Stephen Hill and Michael Barlow and Lachie Neale and Danyle Pearce.

"They've got a really solid midfield, a solid list and a solid team."

Ben Brown was restricted to walking and light skills work at North's main training session on Wednesday, but Scott said the key forward remained in contention to take on the Dockers after hyper-flexing his left knee against the Bombers last Friday night.

"Ben Brown's been cleared of structural damage but we'll have to assess his function more, I suspect, than getting medical clearance," Scott said.

Lachy Hansen (jarred hips/groin) and Jarrad Waite (hamstring) also pulled up sore after North's win over Essendon, but the Roos coach said both should be right to take on the Dockers.

Both talls later moved well in full-ground match practice as did third-year forward Taylor Garner, who has been sidelined for almost 15 months by a succession of hamstring and hip injuries.

Scott said Garner's delayed start to the season, and that of Kieran Harper, had been frustrating given the speed they could bring to North's team.

But Scott said he was "cautiously optimistic" both would return soon, saying he hoped Garner would play within two weeks and Harper would return to training on Friday after having a minor procedure two weeks ago to release the iliotibial band in his right knee.

"Taylor Garner will train fully today and it's just a matter of getting the conditioning back into him," Scott said.  

"He's medically cleared to play, but we want him back playing after he's done a significant block of work."

Scott said he had not received an update on the Tasmanian police investigation into his alleged clash with a security guard during North's round six win over Richmond at Blundstone Arena.

"I've made it really clear to Tasmanian authorities that I'm really keen to speak to them," he said.

"I've made myself available at any time to speak to them. Unfortunately, that hasn't occurred yet because I would really like to put some facts in the story."

Robin Nahas and Brent Harvey share a moment at training. Picture: Getty Images