Fremantle unveiled what could be their forward line well into the future on Friday against North Melbourne, utilising teenage key forwards Jye Amiss and Josh Treacy in their 78-point win against North Melbourne.

Both 28-year-old Matt Taberner (hamstring) and 29-year-old Rory Lobb (Health and Safety protocols) were unavailable for the clash, leaving Fremantle to bring their young keys together for the first time in an AFL game.

The pair had worked well together previously for Peel, highlighted by them combining for 9.0 against West Perth.

But it was a much more significant task against North Melbourne, one that Longmuir admitted was a concern for him going into the clash.

Instead Amiss shone with two goals, with one directly set up by Treacy in an outstanding first quarter effort.

In the opening term, Treacy had eight disposals, five contested possessions, three score involvements and two tackles – shining while the game was more open in Fremantle’s forward half.

“I would be lying if I said it (the inexperienced tall forwards) wasn't a concern going into the game, it's one of North’s strengths, their tall backs,” Longmuir told ABC Grandstand.

“They really impacted the game early, our young talls, I thought Josh played his best quarter at AFL level in the first quarter and competed really well, gave us really good field position and Jye was the same, he provided a really good option for us forward of centre.”

As North Melbourne flooded Fremantle’s forward line later in the game, Longmuir said life became harder for the Amiss and Treacy as the small forwards took control.

“I think as the game went on and we played the game in our front half more and there was a lot more density in our in our front half,” Longmuir said.

“It got a little bit harder for (Amiss) because he is undersized and probably not ready to compete against the extra (defenders) at this stage, but for two teenagers competing at AFL level, I thought they did a fantastic job.

“It's a great sign of the future, so it was a pleasing start for both of them.”

Both Lobb and backup ruckman Lloyd Meek are set to become available for Sunday’s clash with Gold Coast as they emerge from the Health and Safety Protocols, however Longmuir may opt to keep at least one of Treacy and Amiss in the lineup as he is reluctant to play two rucks.

“That's an interesting one. We did that (selected two rucks) against St Kilda and probably felt like Sean Darcy was out of the ruck for a little bit too long,” Longmuir said.

“Although he's capable as a forward, Sean’s best position is in the ruck and allows our midfielders to get really proactive. His marking ability around the ground, both offensively and defensively when he's in the ruck, is really strong and I thought he was a significant contributor against North.

“Meeky still needs to work on his ability to give us a contest and be a forward, he hasn't quite got that yet. I think even if he was available (against North Melbourne), we would have gone with the same structure.”

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