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GREATER Western Sydney is set to demand a first-round draft pick from Essendon for wantaway forward Devon Smith.

The Giants held preliminary discussions with the Bombers about the 176cm goalkicker on the opening day of the NAB AFL Trade Period on Monday.

Essendon holds selections 11 and 28 in the upcoming draft, and the Giants, who snared Smith with pick No.14 in 2011, are targeting first-round compensation.

"(Smith) was a first-round pick when he was selected and he's only 24 years of age, so he hasn’t really diminished in value I wouldn't have thought," Giants list manager Craig Cameron told NAB AFL Trade Radio.

Smith, who has battled knee issues which kept him out of finals this year, played 109 games and booted 100 goals for GWS, but is eyeing more midfield time at the Dons.

A three or four-way deal could be required to strike a trade, with the Bombers also trying to secure Jake Stringer from the Western Bulldogs and Gold Coast defender Adam Saad.

Meanwhile, the Giants expect a pick in the vicinity of the top 20 from Fremantle in exchange for damaging half-back Nathan Wilson.

The Dockers don't have a second-round pick this year, and could have to cough up a future selection.

"They're a little bit hamstrung in terms of their position in the draft this year, so we're trying to work out exactly where they're at," Cameron said.

"Nathan's contracted, so from that perspective that gives us more flexibility in this trade conversation.

"The ability to trade future picks helps us, so I see Nathan as a pick somewhere under 20."

Cameron didn't believe a deal to send uncontracted midfielder Matthew Kennedy to Carlton would be "overly difficult".

"I think we've got a fairly clear line on him with trades we've done in the past with Jack Steele and even Will Hoskin-Elliott (traded to St Kilda and Collingwood respectively for future second-round picks)," he said.

"So I think that sets the bar for Matthew quite clearly."

Cameron indicated GWS was unlikely to target players from rival clubs to replace the outgoing Giants.

"We invested really heavily in last year's draft – we ended up with effectively four first-round draft selections," he said.

"I think we'll again invest in the draft. We need to keep bringing talent through."

GWS has also ruled out entertaining a trade for hard-running tall Adam Tomlinson, who is contracted until 2019, or veteran Ryan Griffen.

"We think if Ryan had played for us at any stage this year – I'm not saying we would have won it obviously – but we would've had a better result," Cameron said.

"We missed him this year and we're looking forward to having him next year."

Meanwhile, the Giants are still awaiting a specialist report about Shane Mumford's injured foot and degenerative knee before discussing if the intimidating ruckman will see-out the final year of his contract in 2018.

"He's having a minor op at the moment which is relatively unrelated, his body is fairly banged-up given the way he plays, as you can imagine," Cameron said.

"I think we'll know within a week as to where he sits."

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