PORT Adelaide has been dealt a late blow for Saturday night's crucial encounter with Richmond at Adelaide Oval, losing defender Jack Hombsch to a knee injury.

Hombsch picked up a knock to his knee in last weekend's win against Collingwood.

Small forward Jake Neade comes into the side to replace Hombsch.

Neade's inclusion will most likely see Jarman Impey deployed in a defensive role that he has played during his career.

The Power could have also decided to leave Hombsch out of its side for better team balance to combat the small forward line of the Tigers.

Both sides are jockeying for positions in the top four, with the teams locked on an 8-5 record, but the Power have a superior percentage.

Port Adelaide v Richmond at Adelaide Oval, 7.10pm ACST

LATE CHANGES
Port Adelaide: Jack Hombsch (knee) replaced in the selected side by Jake Neade
Richmond: Nil

FINAL INTERCHANGES
Port Adelaide: Sam Powell-Pepper, Jake Neade, Matthew Broadbent, Matt White
Richmond: Josh Caddy, Oleg Markov, Connor Menadue, Tyson Stengle

Greater Western Sydney v Geelong at Spotless Stadium, 7.25pm AEST

LATE CHANGES
Greater Western Sydney: Toby Greene (ankle) replaced in selected side by Daniel Lloyd
Geelong: Daniel Menzel (knee) replaced in selected side by Wylie Buzza

FINAL INTERCHANGES
Greater Western Sydney: Tom Scully, Devon Smith, Matt de Boer, Jeremy Finlayson
Geelong: Rhys Stanley, Sam Menegola, Zach Guthrie, Sam Simpson 

Gold Coast v North Melbourne at Metricon Stadium, 4.35pm AEST

LATE CHANGES
Gold Coast:
Nil
North Melbourne:
Marley Williams (back) replaced in the selected side by Lindsay Thomas

FINAL INTERCHANGES
Gold Coast: Pearce Hanley, Jesse Lonergan, Brayden Fiorini, Callum Ah Chee
North Melbourne: Ryan Clarke, Mason Wood, Mitchell Hibberd, Corey Wagner

Carlton v Adelaide at the MCG, 2.10pm AEST

NO LATE CHANGES 

FINAL INTERCHANGES
Carlton: Liam Sumner, David Cuningham, Nick Graham, Simon White
Adelaide: Jonathon Beech, Jake Kelly, Hugh Greenwood, Wayne Milera 

Western Bulldogs v West Coast at Etihad Stadium, 1.45pm AEST

NO LATE CHANGES

FINAL INTERCHANGES
Western Bulldogs: Robert Murphy, Mitch Honeychurch, Shane Biggs, Tory Dickson
West Coast: Chris Masten, Jack Redden, Tom Cole, Malcolm Karpany