AFL 1st Qualifying Final - Port v Geelong
ADELAIDE, AUSTRALIA - OCTOBER 01: Chris Scott, Senior Coach of the Cats speaks with his players before the 2020 AFL First Qualifying Final match between the Port Adelaide Power and the Geelong Cats at Adelaide Oval on October 01, 2020 in Adelaide, Australia. (Photo by Michael Willson/AFL Photos via Getty Images)

Geelong coach Chris Scott says he's unsure of his selected side ahead of the Cats' game against St Kilda on Saturday night.

Most of the uncertainty comes with the ruck set-up, with the Scott naming Rhys Stanley alongside fellow ruckmen Mark Blicavs and Jon Ceglar.

Stanley returns ahead of schedule from a knee injury, with Chris Scott telling reporters on Friday that his selected side may vary to that which runs on the field on Saturday night.

"We were put in a position where we had to pick a team and a squad that we suspect was subject to change, and that's probably the way it's playing out," Scott said.

"It's reasonable to expect that the 22 that we picked last night will change somewhat between now and game time ... Stanley comes in and we're keen to see Ceglar get some more exposure at AFL level before the finals but we're just still a little undecided as to exactly how that's going to look.

"We're very open minded to the two of them playing in the same team, that's definitely on the table."

Scott also added that Sam Menegola (knee) and Zach Tuohy (health and safety protocols) are likely to play, despite the former being named as an emergency.

St Kilda on the other hand, are looking to hold onto a spot in the eight, and a victory over the ladder leaders will do wonders for their September aspirations.

Earlier this week, Saints coach Brett Ratten said the Cats 'can't win forever', leaving Chris Scott bewildered.

"The rest of the season isn't forever...winning over the next couple of months is easier than forever, so it's a pretty logical statement, trees don't grow to the sky," Scott said.

"Coming into finals the last thing we want to be doing is seeing those games as practice games, we want to be trying to simulate what we'll get in a final series as much as possible.

"There's no better way to do that than playing a team that's fighting for their for their football life."

Geelong host St Kilda at GMHBA on Saturday night, set to kick off at 7.25pm AEST.