After the home fans stayed away in droves last week, Sydney are confident the "Bloods" will flock to Friday night's AFL semi-final at the MCG.

The Swans could not crack 20,000 for Saturday night's elimination final win over North Melbourne at ANZ Stadium.

Coach Paul Roos said the club's Melbourne-based fans, who mainly come from the old South Melbourne days, would help flesh out the crowd.

Over the last few years, the Sydney team has embraced South's "Bloods" heritage and their 2005 premiership has also strengthened their Melbourne-based support.

As of late Wednesday, fans had picked up 34,000 tickets for the game.

"I'm sure there's going to be a big crowd tomorrow night, we have a lot of supporters down here, which is great," Roos said.

"We enjoy playing in Melbourne, we get really good support down here - I'm reading 50-55,000.

"We love playing at the MCG, it's a fantastic venue."

The Bulldogs are also counting on a big fan turnout as they try to arrest their poor form of the last two months.

"It's important for us, because we're going to have a home-ground advantage against an interstate team," Eade said.

"It would be great to see the red, white and blue there en masse.

"I think we can get a home-ground advantage, but certainly a home-crowd advantage.

"When we play interstate, we obviously face that as well and I think it's a huge advantage for our players."

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