Australia captain Michael Clarke has confirmed Peter Siddle and Ben Hilfenhaus will sit out the deciding Test against South Africa in Perth.
And with fellow quick James Pattinson out with injury and spinner Nathan Lyon unlikely to play on a traditionally quick WACA wicket, the hosts could go into the game with a completely different attack to that which featured in Adelaide.
They could line-up with a four-man pace attack consisting of Mitchell Starc and Mitchell Johnson as well as uncapped duo Josh Hazlewood and John Hastings.
Clarke said: "It was a tough decision to leave them (Siddle and Hilfenhaus) out, especially with the way they've performed, especially Sidds in that last Test.
"But we need to do what's best for the team.
"It's about selecting the best 11 to win this Test match in these conditions against this opposition that we're playing against.
"We feel that we've got a really good stock with the other four bowlers in the squad of 12, so I think we're still in pretty good hands."
Clarke offered a glimmer of hope to Lyon but it would be a major surprise if he was given the nod.
"Nathan's still a chance that's for sure," he said. "The wicket looks pretty good and I always like having spin in the team.
"Over a five-day period I think spin will play a part, but we need to work out what our best attack is to take 20 wickets. If we think Nathan's part of that best option, we'll go with him and if we don't, we'll go with four quicks."
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- Ben Hilfenhaus
- Peter Siddle