The unfashionable Kangaroos won again to shore up their position in the top eight and all but end the finals aspirations of several other Victorian-based AFL clubs.

The eighth-placed Kangaroos are now a game-and-a-half clear of nearest challengers Essendon and Hawthorn.

A further four points adrift are Richmond and St Kilda, whose supporters can now make their usual plans for a finals-free September.

At the top of the ladder, Port Adelaide and Brisbane survived scares to win and move back into the top three.

The top-placed Power were pushed all the way by the bottom-ranked Western Bulldogs before winning 15.18 (108) to 14.9 (93) in an at-times spiteful encounter at Telstra Dome.

Power centre half-forward Warren Tredrea's hold on a third successive All Australian position strengthened further with six goals.

Afterwards, Port coach Mark Williams accused the Bulldogs of "head-hunting" early in the match.

"We retaliated and they got all the free kicks," fumed Williams.

Brisbane became the first team in 2003 to win the week after playing in Perth.

But the Lions did it the hard way, trailing Hawthorn by 20 points early in the third term before finding another gear to win 14.9 (93) to 11.15 (81) at the Gabba.

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