Sydney co-captain Adam Goodes has called on his side to show more discipline as they prepare for a testing AFL encounter against Western Bulldogs at the SCG.

The umpires' interpretation of a number of key moments in Sunday's match against Fremantle drew a strong reaction from the crowd of 23,415.

Coach John Longmire said he would consider contacting AFL umpires boss Jeff Gieschen, should his review of the game raise some questions about the interpretation of the rules.

Goodes is more concerned with how his side was in a position to give away so many 50-metre penalties and free kicks.

"The discipline on the weekend was unacceptable and we have to take responsibility for that," Goodes said on Monday.

"I've never seen so many 50-metre penalties in a game, I've never seen - just those little scuffles at all.

"We've never really been drawn into those in the past from my memory, so it's definitely something that we have to address.

"In the end, it's free kick goals that cost us the game. They kicked six or seven."

The Dockers booted six consecutive goals in the feisty third quarter, three of which came from free kicks.

Shane Mumford and Ben McGlynn were both charged for engaging in a melee and can accept $1200 fines with an early plea.

With a bye to follow after this weekend, the Swans risk tumbling out of the top eight if they succumb to the Dogs on Saturday.

Sydney are clinging to eighth spot with 34 points but Melbourne (30), St Kilda (30), North Melbourne (28) and the Dogs (28) are all nipping at their heels.

It is a far cry from the top four contenders they were before dropping four of the past five matches.

"We knew we were coming into a tough patch," Goodes said.

"To lose in Adelaide and lose the way we did on the weekend, and show those signs of undisciplined acts, it's definitely something we have to look at closely and I'm sure the review today, with Horse and the coaches, will be a very thorough one.

"You have to take responsibility for what happened on the weekend and we move on. We've got five days now to prepare ourselves for the Western Bulldogs."

Jude Bolton (knee) is expected to return this weekend, while there were a number of sore bodies at Monday's recovery after the physical clash with the Dockers.

Dual Brownlow medallist Goodes wouldn't speculate on any changes to the side but did hint it could be a searching week.

"We'll look at what we need to improve on, see who's fit and ready and who really wants to be a part of getting this team going for finals footy," he said.

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