SYDNEY Swans stars Jarrad McVeigh and Gary Rohan may make a miraculous recovery and be fit to take on Geelong in Friday night's preliminary final after receiving good news on the injury front.

Rohan (knee) and McVeigh (calf) both went down in the first half of last week's semi-final win over Adelaide at the SCG, and their seasons looked in serious doubt.

But subsequent scans have cleared Rohan – who was stretchered from the ground – and McVeigh of any serious damage, and both remain a chance to face the Cats.

While there is still some serious doubt over their fitness, coach John Longmire said that if the pair could get through the Swans' main session on Wednesday and pull up well they're a big chance to play at the MCG.

"Gary's knee is structurally sound and the bone is fine, so he's just got a deep bruising from the knock," Longmire said.

"Jarrad (McVeigh) has a really slight strain but we've had players play before with similar strains, so we'll just see how the week progresses.

"It's a bit early to rule anyone in or out at the present time, we'll give them every opportunity (to play).

"Saturday night you're not quite sure how things are going to pan out, that’s why it's important not to jump to conclusions too early.

"At the moment we haven't got all the facts, but it's looking more positive than it could have been."

Ruckman Kurt Tippett could also be available to take on Geelong after suffering a hairline fracture in his jaw against Greater Western Sydney in the first week of the finals.

The star big man and attacking defender Zak Jones (concussion) will also press their claims for a recall this week.

"Kurt did part of our final session here last week and trained fully here on Sunday," he said.

"He'll do more on Wednesday and see how he feels.

"He was able to play the game out against GWS and train really well on Sunday, but it comes down to a discussion between the coaching staff, the medical staff, and Kurt (on whether he plays).

"Zak Jones ran last week and pulled up fine from that and trained really well on Sunday.

"He feels really good and is looking pretty good at the moment."

NAB AFL Rising Star winner Callum Mills ran laps at the SCG on Monday after straining his hamstring against the Giants, and although he's little to no chance of facing Geelong, he could be in contention to play in the Grand Final should the Swans manage to get through.