A sickening injury to Aaron Naughton has further depleted the Western Bulldogs, their star forward taken off on a stretcher in a 66-point thumping from rampant Sydney.

Charlie Curnow produced his best performance in Sydney colours, booting seven goals in the Swans' 18.18 (126) to 9.6 (60) win at Marvel Stadium on Thursday night.

It was Curnow's best haul since he kicked 10 goals against West Coast in round 19 in 2025 when playing for Carlton.

The star recruit, along with ruckman Brodie Grundy, feasted on the Bulldogs missing a stack of tall talent.

Already missing ruckman Tim English, star forward Sam Darcy and key defenders Rory Lobb and James O'Donnell, the Bulldogs could be without Naughton next week.

Having already already pulled down a screamer earlier in the game, the high-flying forward went for another towering mark late in the third quarter.

But Naughton landed badly on his head with serious force, immediately knocking him out on the turf.

The 26-year-old lay motionless, before a stretcher took him from the field.

In a positive sign, Naughton was able to give a thumbs-up to the crowd as he was transferred into the rooms.

The Bulldogs were optimistic Naughton has avoided serious injury, and he will be assessed ahead of their clash with Fremantle on May 1.

"He appears to have strained the side of his neck from the incident," Bulldogs coach Luke Beveridge said of Naughton.

"The bright side is no signs of concussion, but we'll get something more definitive from a scan."

Inspired by celebrating the 10-year anniversary of their drought-breaking grand final win over Sydney, the Bulldogs came out firing and looked capable of causing an upset.

But overcoming a slow start when the Bulldogs slammed through the first three goals, Sydney steadied after quarter-time to kick eight of the next 11 majors.

Curnow and fellow key forward Joel Amartey stretched the Bulldogs' under-sized defence, sharing all seven of the Swans' first-half goals.

Grundy was a goliath in the ruck, monstering inexperienced pair Lachlan Smith and Louis Emmett.

The ex-Collingwood and Melbourne big man even hit the scoreboard, kicking two goals in a four-minute burst in the third term.

Bulldogs captain Marcus Bontempelli entered the match under an injury cloud, but in typical fashion was still his team's best.

Clearly struggling with heavy strapping around his knee, Bontempelli booted two goals and gathered 29 possessions.

The Bulldogs had some serious firepower missing, but Sydney weren't at full strength either.

Superstar Isaac Heeney (calf) joined fellow game-winner Errol Gulden (shoulder) on the sidelines after pulling up sore following the Swans' Sydney derby win last week.

Heeney is expected to be available for the Swans' next match, at home to Melbourne on May 3.

"It got to our main training session, it just become a little bit too close to the game," Swans coach Dean Cox said.

"The option, medically, was to not play him."

Already sitting on top of the ladder, Sydney moved to 6-1 with a thumping percentage.

But after starting the season 4-0, the Bulldogs have suffered three heavy defeats in a row.