Lance Franklin is a certainty to play round one despite suffering a corked knee in Saturday's 27-point practice match win over the Brisbane Lions, but Lion Claye Beams has a bigger question mark after sustaining a foot injury.
Franklin kicked two goals in an encouraging first half but did not reappear after the break following a knock to his knee.
The Swans survived just fine without their prized recruit after half-time though, winning 12.14 (86) to 8.11 (59) in front of a strong crowd of 6096 at the new AFL precinct in the north Brisbane suburb of Burpengary.
Swans coach John Longmire said he did not want to aggravate Franklin's niggle so decided to take the cautious approach.
He said there was no doubt Franklin would line up against Greater Western Sydney in the opening round next Saturday.
"He's fine, just a little bit sore after he cooled down at half-time," Longmire said.
"Rather than play the second half and maybe carry it into training next week, we decided to finish him up, but he'll be fine for next week."
News was a little more clouded around Lions midfielder Beams, who was also confined to the sidelines for the second half.
Lions coach Justin Leppitsch said he would have scans on the foot on Monday to determine the extent of the damage.
"We're unsure whether it's bone or ligament yet," Leppitsch said.
"That'll determine how bad it is. We're hoping it's just a ligament strain but we're unsure as yet."
Beams was playing just his second match back from a full knee reconstruction suffered early last season.
Aside from the knee hiccup, Franklin was superb in his two quarters of action, kicking his first two goals in Swans colours – a far cry from his goalless debut against West Coast last week.
In the first quarter he picked up a loose ball on the 50m arc in front of opponent Daniel Merrett, swung around on to the trusty left boot and kicked truly.
Then in the second term he took a strong overhead mark on the lead in front of Merrett and converted the set shot from 30m.
At the other end of the ground, former Lions captain Jonathan Brown had a quiet return to action.
Brown, playing his first match of the pre-season after a recurring foot problem, finished with just two touches in his two quarters of action before also being rested.
Leppitsch said there was no guarantee Brown would play in round one against Hawthorn on March 22.
"(We'll) See how his progression's going," he said. "See how he's right for two weeks time. We'll have a big discussion on whether he's ready for that game or the one or two after.
"We have to do the right thing by him when his body is ready."
After Brent Moloney kicked the game's first goal in the opening minute, the Swans simply took charge and were rarely troubled in a clinical display.
Jarrad McVeigh (34 disposals, nine clearances and one goal) was head and shoulders the best player on ground, while he received great midfield support from Josh Kennedy (26 and nine clearances) and half-back Nick Malceski (25).
Despite missing stars Adam Goodes (knee) and Kurt Tippett (knee) they were far more efficient both coming out of defence and entering their forward line.
The Lions tried hard all day and actually won the disposal count (371-367) and were competitive in the clearances (43-46), but just lacked polish.
Moloney was sensational with 34 disposals.