"He's recovering really well. It's fantastic the surgeon (Dr Mark Blackney) was able to book him in early Sunday morning and get the achilles repaired straight away," Saunders told NMFC.com.au.
"The surgery went really smoothly, the surgeon was really happy with the end result and now Andrew has to rest at home for the next week or so before we get him into rehab."
PRESS PLAY above to watch the incident | YouTube
Saunders said the recuperation process is crucial.
"He'll be in a backslab (plaster cast) for a couple of weeks and then he'll go into a boot. He'll start taking partial weight through the boot at about week three or four.
"He'll be pretty mobile quickly but there's obviously a very careful and gradual loading program that needs to be done over many months. The short term plan initially is just to let the repair heal and let nature do its thing."
As the Roos' skipper begins to heal, Saunders has full confidence the 26-year old will do everything by the book.
"There are really specific exercises you can do that can maximise the healing response to make sure things heal as well as possible and the scar tissue is well aligned. Andrew is extremely thorough and particular, so we know he'll be doing all the right things."
If all goes well, Swallow could start running in time for pre-season training.
"There will be a number of weekly measurements that we'll take to see how he's tracking and nothing is ever set in stone, especially with these types of repairs, but all indications are that by December, Andrew should be able to start some running on the Alter-G treadmill, with very low percentages of body weight."
Meanwhile Jack Ziebell caused more concern during the second quarter of the Roos' 122-point win over Melbourne with more bumps and bruises.
"Jack's copped a couple of contusions (corkies) again but he's good," Saunders said.
Watch the Ziebell incident on YouTube
Liam Anthony spent some time on the sidelines during North Ballarat's win over Werribee in the VFL but the midfielder is still in contention to make his senior comeback.
"Liam flung his arm out for a tackle, so the arm got wrenched. He was able to come back on though and finish out the game."
"He's just bruised and jarred the joint a little bit but he's all structurally good and should be fine."
And Saunders is confident rookie Max Warren will make his return for the Roosters this weekend after a broken collarbone.
"He has had a few weeks of full contact training and the surgeon's cleared him to play so he looks good."
Liam Anthony - (shoulder) - test
Max Warren - (collarbone) - available
Andrew Swallow - (achilles)- season
Mason Wood - (knee) - season
Tom Curran - (foot) - season
