On Wednesday, North Melbourne assistant coach Leigh Tudor claimed that Todd Goldstein has the tank to keep up with Geelong's aerobically gifted back-up ruckmen, Mark Blicavs and Josh Walker.

Yet Blicavs and Walker, who will carry the rucking load for the Cats in their semi-final against the Kangaroos because Hamish McIntosh has been sidelined by knee soreness, have set themselves to run Goldstein ragged.

"He's an experienced, quality ruckman, so Mark and I might lose a little bit of size against him, but certainly our competitiveness (will be important)," Walker told AFL.com.au.

"Myself and Mark have done plenty of (rucking in the past), so it's nothing new to either of us and we'll take confidence out of that.

"We'll jump into him and just try to make it a bit of a hellish night for him.

"Certainly around the ground we think we can use our aerobic capacity and really make life difficult for him."

Geelong coach Chris Scott has no doubt that Blicavs and Walker can get the job done.

"We're really excited for those two," he said.

"They offer different strengths to those that Hamish offers.

"They're both exceptional runners, and it's particularly exciting for Josh because he's been deprived of opportunities a little bit this year."

Walker says the pain of defeat against Hawthorn still lingers.

"It stung for a few days, no doubt, and it probably still does," he added.

"But we've tried to move on, we have to move on. We've got another final this Friday night, so I think there's definitely a bit of a buzz around the place.

"We're still in the finals and we're still a big chance. We're certainly confident about this week, and we're trying to still have a bit of fun and make the place enjoyable."