Two powerhouse clubs are reportedly expected to be busy buyers during this year's trade and free agency period.

Geelong and Sydney are understood to be two sides that could make noise at the end of the season as it pertains to player movement, according to's Riley Beveridge.

With the likes of Carlton's Tom De Koning and GWS' Harrison Himmelberg potentially available for the right price, numerous clubs are expected to show interest.

Beveridge was featured on SEN on Sunday, discussing what he believes the Cats and Swans' list management plans are shaping to be.

"They'll both have big summers in terms of what they do with their list," he started on Sunday.

"We know Geelong is right in the mix for Tom De Koning, we know the Swans are casting the net far and wide for a key position player at either end of the field.

"I think they're both going to be right in the hunt and two of the more aggressive teams come the trade period."

Beveridge tipped Sydney to be a prominent Himmelberg suitor.

"They'll be in the mix for Harry Himmelberg," he said.

"He gives you an option and a foil for Logan McDonald if you think Logan McDonald's your next key forward for the next 10 years."

As for the Cats, in addition to the obvious ties to De Koning, Beveridge stated a midfield restructure could potentially be a focus.

"I look at Geelong's midfield, particularly over the last month when Cam Guthrie and Patrick Dangerfield haven't played, and the onus has been on guys like Brad Close who've gone in there a lot, and guys like Zac Guthrie," said Beveridge.

"Do they need another genuine midfielder, another genuine 25-26-year-old midfielder as well as a Tom De Koning at season's end."

The Swans and Cats played out an enthralling draw on Friday night, with both sides desperately fighting for finals seeding as the cessation of the home and away season draws nearer.