Five clubs - Richmond, Collingwood, GWS, Brisbane and Hawthorn, are set to dominate selection for next week's State of Origin clash.

According to a report by The Age, Collingwood will have five players, including Victorians Darcy Moore, Scott Pendlebury, Steele Sidebottom and All-Stars Brodie Grundy and Jeremy Howe.

With AFL boss Gillion McLachlan personally scrapping the original rule that capped the number of players selected from each club, the injury-prone Moore was reportedly chosen as a late call-up by Victorian coach Damien Hardwick.

Moore will follow in his legendary father's footsteps with Peter Moore also representing the 'Big V' in 1984.

Reigning premiers Richmond will have six representatives in the squad with Dusty Martin, Tom Lynch, Jack Riewoldt and captain Trent Cotchin confirmed so far.

Last year's runner-up Greater Western Sydney will have five players across both squads, with Phil Davis and Stephen Coniglio to play for the All-Stars while Josh Kelly, Jeremy Cameron and Lachie Whitfield will play for Victoria.

Giants star pair Zac Williams and Toby Greene are set to miss with Greene recovering from a minor knee injury while Williams is still under pre-season load management.

Last year's surprise team the Brisbane Lions will also have five players picked with ruckman Stefan Martin being a surprise selection for Victoria, with star Melbourne ruckman Max Gawn is confirmed to miss with a knee injury. "

The Lions will have four players in the All-Stars squad with captain Dayne Zorko to be joined by Charlie Cameron, Harris Andrews and Lachie Neale.

With all 18 teams must having representation across the two squads, sources told The Age that Melbourne, Fremantle and Gold Coast will each only have one representative. After prodding from the coaches around the league, the original three players per club rule was scrapped.

The Herald Sun is reporting that Hawthorn will have up to six players, including James Worpel, James Sicily, Ben McEvoy, Shaun Burgoyne, while Liam Shiels and Isaac Smith are "tipped" to be named.

Hawthorn coach Alistair Clarkson has been confirmed to be Damien Hardwick's lead assistant in a Victorian coaching panel that will include Tigers assistant Adam Kingsley, Gold Coast's Dean Solomon and Collingwood's Robert Harvey.

The All-Stars head coach John Longmire will be joined by Gold Coast head coach Stuart Dew as his lead assistant and they will be assisted by Port Adelaide's Michael Voss, Giants' Mark McVeigh, Western Bulldogs' Joel Corey and Sydney's Dean Cox.

Stay tuned for the official announcement of the squads at 12:00pm AEST today.