GREATER Western Sydney has added versatile big man Lachie Keeffe to its side to face Collingwood in Saturday's preliminary final at the MCG.

Keeffe wasn't named in the Giants' original team on Thursday night, but comes in as Toby Greene's replacement, who failed to have his one-match ban overturned at the AFL Appeals Board on Thursday night.

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The 204cm swingman will help Shane Mumford in the ruck against star Pie Brodie Grundy.

Bobby Hill also returns to the side in place of injured wingman Lachie Whitfield.

The Pies have confirmed Ben Reid as Jordan De Goey's replacement, the veteran to play his 150th match and first since round 15.

James Aish will play his first match since shoulder surgery after round 18, edging out Matt Scharenberg and Jack Madgen to replace Levi Greenwood.

Madgen and Scharenberg have been named as emergencies with Travis Varcoe and Josh Daicos.



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Meanwhile, mystery remains as to where Geelong's talls will start in Friday night's preliminary final against Richmond with Lachie Henderson named as Tom Hawkins' replacement.

The Cats are expected to send one of Harry Taylor or Henderson, who has been played his five games this year as a defender, into attack to cover the loss of the suspended Hawkins.

It would leave the other and Mark Blicavs, who played last week on a wing, to contend with Richmond key targets Tom Lynch and Jack Riewoldt in defence.

Lachie Henderson is in for the Cats.

Dynamic Cats forward Gary Rohan, who missed the semi-final win over West Coast with a knee setback, has been named as an emergency alongside James Parsons, Zac Smith and Scott Selwood.

The Tigers remain unchanged from the qualifying final win over Brisbane, keeping the dual ruck tandem of Toby Nankervis and Ivan Soldo to tackle Rhys Stanley.

Friday, September 20

Richmond v Geelong at the MCG, 7.50pm AEST

RICHMOND

No changes

GEELONG

In: L.Henderson

Out: T.Hawkins (suspended)

Saturday, September 21

Collingwood v Greater Western Sydney at the MCG, 4.35pm AEST

COLLINGWOOD

In: B.Reid, J.Aish

Out: L.Greenwood (knee), J.De Goey (hamstring)

GREATER WESTERN SYDNEY

In: B.Hill, L.Keeffe

Out: L.Whitfield (appendicitis), T.Greene (suspension)