Sydney coach John Longmire says he has spoken to AFL umpire boss Jeff Gieschen about controversial decisions in last weekend's loss to Fremantle.

Swans' fans were left incensed after several contentious calls against the home team during the 11-point loss to the Dockers and, while Longmire admits confusion over some of the decisions, he's letting the issue drop.

The Swans' coach believes it's not in his team's interests to contemplate would could have been ahead of Saturday's crucial clash against the Western Bulldogs at the SCG.

"I did speak to him on Monday, he was good, we went through a number of the free-kicks," Longmire told reporters on Tuesday.

"We agreed on some, he admitted some were wrong, he admitted some were right.

"You get to the stage where you need to move on pretty quickly because that's a reality of the game.

"There's no point still sitting here on a Tuesday dissecting the could'ves, would'ves, should'ves. That doesn't get anyone anywhere.

"We're disappointed in a couple of things that happened but we've got to get on with the game this week."

The Swans go into Saturday's match sitting eighth on the ladder while the Bulldogs are one of the teams trying to break into the finals positions just six points off the pace.

Longmire said there was no doubt a victory is vital for the Swans, who have won just twice from six starts at the SCG.

"It's crucial to us to start winning games anywhere," he said.

"We missed an opportunity on the weekend. We came home in the last quarter but we ultimately fell short. It's just critical for us to win this weekend.

"We understand where we are on the ladder, we understand the teams beneath us are teams that are also desperate to win games of footy - it's a big game for us, there's no doubting that at all."

Longmire is hoping the return of Jude Bolton from a knee injury will be the pick-up his charges need against the 'Dogs.

"We expect him to be right," the Swans' coach said of the 31-year-old.

"We've missed, not only his grunt the past few weeks, but also his ability to kick goals and play a variety of different roles.

"We expect him to come back this week and he's probably the likely inclusion at this stage."

Brought to you by AAP © 2024 AAP