Fremantle mounted a remarkable fourth-quarter comeback to secure a thrilling six-point win against Melbourne, with Irish star Aisling McCarthy converting after the siren to give her team a memorable win.

McCarthy was awarded a free kick inside 50 moments before the siren sounded at Fremantle Oval and lined up from 30m on the angle with scores level, giving Fremantle their second straight comeback triumph as the ball sailed through for a goal.

McCarthy's goal prompted wild celebrations after Freo came from 18 points down at three-quarter time to win 7.5 (47) to 6.5 (41) with the aid of a fourth-quarter breeze.

It was heartbreak for the Demons, who had appeared on track to steady their season at 2-2 after playing the better football for three quarters. They were dominated in the final term, however, and failed to score as the ball was camped in Fremantle's front half.

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Gabby O'Sullivan was Fremantle's star, playing in the front half and kicking a game-high three goals to make the win possible, including a gem from 45m on the run that cut the fourth-quarter margin to four points.

Injury-replacement player Gabby Biedenweg-Webster and veteran Ebony Antonio also converted free kicks inside 50 in the final term to make the win possible after the Demons had led by as much as 22 points in the second quarter.

The win could come at a cost, however, after star forward Áine Tighe was sent for scans for an apparent knee injury early in the game.

Talented midfielder Eliza McNamara (30 disposals) was supreme for the Demons, while Sinead Goldrick (21 and a goal) was prominent when the team had momentum. 

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The Demons' goalkicking radar was finely tuned in the first quarter, kicking four of the first five goals as they dominated possession and forward entries and took control of a strong breeze.

They neutralised Fremantle's clearance strength and linked up expertly through the midfield with quick handballs that caught their opponents on the back foot, establishing a 17-point lead at the first break.

It was Freo's turn to take advantage of the conditions in the second term, but they couldn't play with the same efficiency as Tighe's absence inside 50 became more apparent.

Georgia Gall extended the Demons' lead to 22 points with an early goal from a set shot before Freo kicked 0.4, finally breaking through for a goal when O'Sullivan was rewarded a holding the ball free kick inside 50 with three seconds to play in the half. 

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Another free kick inside 50 for Sullivan to start the second half made it back-to-back goals for Fremantle as it tried to work back into the game and pressed forward more frequently.

Again, however, the polish going inside 50 was poor and Fremantle were left further behind when Goldrick earned a free kick for a dangerous tackle against Dana East and a 50m penalty was paid for breaching the protected area.

It left Melbourne 18 points clear at the last change, which looked likely to be a big enough buffer to hold off Fremantle, but the home side flicked into a more attacking mode and secured a memorable win.

Fremantle sweat on Tighe injury
Fremantle star Áine Tighe was sent for scans during Saturday's clash after going down innocuously during the first quarter with an apparent knee injury. The tall forward, who was crucial to Fremantle's comeback win against Port Adelaide last week, suffered back-to-back ACL injuries before making her 2022 debut, and would be a significant loss if she has suffered another long-term setback. The Irish forward's absence on Saturday became immediately apparent as Freo struggled to hit forward targets early, looking for other ways to kick goals.

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FREMANTLE                1.1   2.5   3.5   7.5 (47)
MELBOURNE               4.0   5.1   6.5   6.5 (41)  

GOALS
Fremantle: O'Sullivan 3, Antonio, Biedenweg-Webster, McCarthy, Miller
Melbourne: Bannan, Gall, Goldrick, Hanks, Hore, Zanker

BEST
Fremantle: O'Sullivan, Miller, Strom, O'Driscoll, Newton, McCarthy
Melbourne: McNamara, Goldrick, Hore, Hanks, Chaplin

INJURIES
Fremantle: Tighe (knee)
Melbourne: Mackin (calf)

LATE CHANGES
Fremantle: Nil
Melbourne: Grace Beasley (knee) replaced in selected side by Grace Hill

Crowd: 1633 at Fremantle Oval