Ugly MCG fight overshadows Giants' historic AFL finals win

Greater Western Sydney's historic AFL finals win against Collingwood has been overshadowed by ugly fan violence.

The Giants booked their place in next Saturday's decider against Richmond after a dramatic preliminary final victory over the Magpies at the MCG.

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However, it was more disgusting scenes in the stands that have stolen the headlines.

A nasty fight broke out when security officials attempted to eject six supporters for drunk and disorderly behaviour.

One of the men being escorted out of the stands reportedly threw a drink at a security guard, which sparked a dramatic brawl.

Amateur footage shows numerous police officers and security guards trying to hold the offenders down, while others attempt to wrestle and hit their way out.

Victoria Police say twenty people were evicted in relation to drunk and behaviour offences, with 16 of those receiving penalty notices.

The unsavoury incidents marred what was a thrilling contest as the undermanned Giants sealed first grand final appearance in the club's short history.

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The underdogs handled wet conditions to lead by a game-high 33 points early in Saturday's final term, but had to withstand a stirring late challenge from the Pies, who kicked the last four goals of the match only to fall agonisingly short - 8.8 (56) to 7.10 (52).

Leon Cameron's men set up a premiership decider against Richmond with the gutsy display in front of 77,828 fans, the vast majority of whom wore black and white and left the MCG broken-hearted at the pointy end of the season for the second year running.

It is the first time since 1980 that both the minor premiers and the second-placed team at the end of the regular season haven't made the grand final.

GWS players celebrate after sealing a spot in the AFL grand final. Pic: Getty

If the Magpies had managed to fall over the line, it would have been a controversial win after Josh Thomas was awarded a goal in the last quarter that appeared to be touched off the boot.

Thomas' next goal with seven minutes to go in the game sliced the margin to six points and set up a frantic finale with the ball camped in the Magpies' front half.

But Nathan Buckley's side couldn't find a way past the brave Giants, who hung on for the most famous win in the club's eight-season history.

"Did we anticipate being 33 points up with 20 minutes to go and then, all of a sudden, there's an avalanche from Collingwood? No," Cameron said.

"But it throws another set of circumstances at you and our boys are really proud. They wanted to find a way and they did.

"We've had our backs against the wall a little bit this year, but I said to our guys before they ran out: 'Enjoy the moment, play to the end and who knows what can happen?'

"We did play to the end and we're into a grand final."

Star players Toby Greene (suspension) and Lachie Whitfield (appendicitis) were ripped from Cameron's line-up in the lead-up to the clash, and co-captain Phil Davis (calf) was hobbled early.

Toby Greene will return from suspension for the grand final. Pic: Getty

Greene will certainly return and Cameron is confident Whitfield will too. However, Davis, who switched from defence to attack due to his limited running capacity, will need to undergo scans to determine the severity of the injury.

The Giants were simply tougher in the clinches, winning more than their share of ground balls and dominating the territory game in the first three quarters.

The Pies had been desperately disappointing for the most part, but somehow sprang to life after the last change.

They attacked in waves in a way that they hadn't managed for most of the match, Brodie Grundy leading he way with an incredible 73 hit-outs.

But this was a GWS story.

Nick Haynes was superb across half-back with 30 possessions and nine marks. Zac Williams gathered 25 touches with 10 clearances and a goal.

Josh Kelly (27 possessions) and Tim Tarranto (26) also made important contributions.

Master tagger Matt De Boer went to Scott Pendlebury and kept the Pies' skipper to 18 possessions.

With AAP