Aaron Sandilands and Ed Langdon won’t be available for selection for Saturday’s clash with the Crows at Adelaide Oval, according to senior coach Ross Lyon.

Both Sandilands and Langdon are expected to miss at least one week.

“Aaron Sandilands wont play this week…and Langdon we’ll just manage him,” Lyon said.

“(Langdon’s) been playing sore so there will definitely be two changes.”

Lyon added that scans had confirmed that the injury wasn't serious.

“He’s just tightened up in the hamstring,” Lyon said.

“It’s just a bit weaker than we would like. The scan was cleared but it was a bit weaker. We need to get him strong again.

“Hopefully, (one week out) is what we’re aiming for.”

Lyon said Jon Griffin was the most likely replacement for Sandilands.

“We’re bringing in (Jon) Griffin, and he’ll execute his role,” Lyon said.

“Everyone brings something different to the table, Jon plays with a real passion and he’s carried the number one ruck spot years ago for us when Aaron’s been out and he’s done really well. We don’t expect any different.”