GREATER Western Sydney has ended the season of its arch-rival in embarrassing fashion by dismantling Sydney by 49 points in Saturday's elimination final at the SCG.

After a tight first quarter, the Giants dominated for the rest of the game, putting the foot down with eight consecutive goals either side of half-time to run out 10.19 (79) to 4.6 (30) winners.

They will now play the loser of Saturday night's qualifying final between West Coast and Collingwood and take some real belief into the contest.

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It's the second time in three seasons GWS has beaten the Swans in a final, and this time was even more comprehensive than the 36-point win in 2016.

Sydney did not kick a goal between the seven-minute mark of the second quarter and the 23-minute mark of the last.

Its four goals – two of which came in the dying minutes - was its lowest score as the Sydney Swans in a final.

The win was even more meritorious considering GWS played the final three quarters without midfield prime mover Josh Kelly who suffered a meniscus injury to his right knee just before quarter-time.

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Kelly had the knee strapped and tried running and cycling on the stationary bike to get back on the field but did not return.

It made little difference in the slippery conditions though as the Giants flexed their muscles, overpowering their crosstown rivals in almost every category.

They won the disposals 415-337 and more significantly contested footy 163-125 and the inside 50s 63-39.

They had winners all over the ground, but perhaps none was better than Toby Greene, who showed no ill-effects of his disrupted season with a best-afield performance.

WHO WAS BEST? Every Giant rated out of 10

Coming back from a hamstring injury that cost him the final three weeks of the season, Greene gathered 27 disposals, kicked three goals and was a constant menace forward of centre.

He was at his niggly best and totally outpointed Zak Jones, taking nine marks to add to a stellar performance.

His third-quarter bomb from outside 50 was the first nail in Sydney's coffin.

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Phil Davis easily outpointed goalless Lance Franklin in their much-anticipated duel, with the Swans superstar clearly hampered by his ongoing hip problem.

Franklin was far from the Swans' biggest problem, but GWS coach Leon Cameron was delighted with his co-captain's showing.

"Phil has had a terrific year and he was a bit stiff to not make that 40-man All Australian squad, he's just been fantastic," Cameron said.

"He was great tonight and as one of our co-captains he stood up from the start.

"If was a great effort from Phil and all our backs to keep them to four goals, and it was probably the best collective performance from our back seven for the entire year."

Greene wasn't the only good comeback story as Zac Williams (Achilles), Brett Deledio (calf) and Matt de Boer (hamstring) also justified the faith in them shown by coach Leon Cameron.

Playing his first game for the year Williams was important, particularly early, with his 23 touches, while Deledio also justified his selection with 22 disposals and de Boer with 17.

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Lachie Whitfield (29) shook the problems of his two quiet games against the Swans earlier this season, while Callan Ward (29, 17 contested) and Stephen Coniglio (27, 13 contested) helped control the contest in the trenches.

It was a dismal exit to the season for the Swans, who remarkably lost their seventh home game for the season and barely fired a shot.

Coach John Longmire was mystified by the showing. 

"Nothing went right for us and everything went wrong," Longmire said.

"When you talk about contested ball, tackles, we couldn’t hit a target forward of centre, when we did hit a target we fumbled and we didn't win any contests forward of centre.

"We just didn't get anything right."

WHO WAS WORST? Every Swan rated out of 10

Truthfully, the Giants could have won by more such was their dominance.

Josh Kennedy (27 touches) and Dan Hannebery (24) battled hard, but the Swans simply had no answers.

MEDICAL ROOM
Sydney Swans: No new problems out of the game, but clearly Lance Franklin was still hampered by the hip problem that has troubled him for some time. Coach John Longmire conceded there was some doubt on Franklin playing, but said he was happy to back his star forward because he's "such a competitor".

Greater Western Sydney: The big loss for the Giants was Josh Kelly who suffered a meniscus injury to his right knee in the first quarter. Despite Kelly not reappearing after quarter-time, coach Leon Cameron is hopeful his star midfielder will be available next week. Zac Williams went off for 10 minutes early in the third quarter with a tight back but returned, while Toby Greene suffered cramps in the final quarter that also kept him sidelined for 10 minutes, but he also returned.

NEXT UP
While it's the end of the season for Sydney, GWS advance for at least another week and will travel to play the loser of Saturday night's West Coast-Collingwood match.

SYDNEY                                           1.4    2.4      2.6      4.6 (30)
GREATER WESTERN SYDNEY      2.3    4.7    7.11    10.19 (79)       

GOALS
Sydney: Papley 2, Parker, Ronke
Giants: Greene 3, Cameron 2, Himmelberg 2, Coniglio, de Boer, Ward

BEST 
Sydney: Kennedy, Parker, Heeny, Cunningham
Giants: Davis, Whitfield, Greene, Coniglio, Himmelberg, Ward, Haynes

INJURIES 
Sydney: Nil
Giants: Josh Kelly (knee)

Reports: Zak Jones (Sydney) reported for engaging in rough conduct on Callan Ward (GWS) in the fourth quarter

Umpires: Margetts, Stevic, Williamson

Official crowd: 40,350 at the SCG