RECALLED Adelaide midfielder Bryce Gibbs is no certainty to hold his spot for Saturday night's top-eight encounter with Greater Western Sydney at Adelaide Oval.

With co-captain Rory Sloane a 50-50 chance of recovering from a grade one hamstring strain, gun on-baller Matt Crouch on track to return from a hip contusion and veteran Richard Douglas pushing his claims in the SANFL, competition is hot in the Crows midfield.

Gibbs, 30, played a crucial role as a tagger in negating the influence of Demons star Clayton Oliver in the second half of the Crows' thrilling two-point win in Darwin on Saturday night.

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"At this time of the year with this squad available, someone's going to be unlucky," assistant coach Ben Hart said on Monday.

"I don't know who it is.

"That's what happens when you have your full squad available, pressure on for spots is a fantastic thing to have."

Gibbs has been dropped twice this season for his lack of defensive running, but stuck to his task when assigned to Oliver.

"We were pleased with what Bryce was able to do, come in and have that impact and do a job that the team needed," Hart said.

The Crows are the envy of the competition with their low injury list - defender Tom Doedee (torn ACL) is their only player definitely unavailable this weekend.

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Sloane was running on Monday morning after injuring his hamstring against the Demons, while Crouch, who has missed the past three games, will be tested this week.

Douglas had 31 disposals and eight clearances in the SANFL on the weekend in his second game back from an ankle injury.

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There will also be a toss of the coin between experienced ruckman Sam Jacobs – who kicked five goals and had 28 hitouts in his first game back in the SANFL after knee surgery in April – or stick with improving youngster Reilly O'Brien, who held his own against Demons big man Max Gawn.

"It will be a tough call," Hart said.

"Rob's been in really good form, he's been able to come in as a younger player and take on some of the better ruckmen and do a great job for us.

"Sam was on a little bit of limited game time last week, so the discussion will be, 'Has he played enough, does Rob need a rest, do we need to play two ruckmen?"