Carlton roared into AFL finals contention with a stunning comeback win over Port Adelaide at AAMI Stadium on Sunday.

Led by an outstanding display from skipper Chris Judd and a three-goal last term from star youngster Matthew Kreuzer, the Blues came from five goals down at the last change, outscoring the Power 7.3 to 0.3 in the final term to win 10.15 (75) to 8.15 (63).

The victory left Carlton just two premiership points, plus percentage, shy of the top eight, after eighth-placed North Melbourne lost to Geelong on Friday night and ninth-placed St Kilda lost to the Western Bulldogs 15.16 (106) to 11.13 (79) at Telstra Dome.

It keeps the Blues in contention to qualify for what would be their first finals appearance since 2001, after spending most of the intervening period on or near the bottom of the ladder.

It was the second interstate win for Carlton in as many attempts this season, following their victory over West Coast in Subiaco in round seven, which was their first win outside Victoria since 2004.

It lifted them to 10th spot, overtaking beaten opponents Port Adelaide, with last season's grand finalists the Power now facing a huge battle to stay in the finals hunt.

Sunday's capitulation was the second time this season the Power have given up a big lead at home, after the Brisbane Lions came back from 47 points down to beat them by 20 in driving rain in round four.

Port Adelaide now have to try to rebound against Geelong at Skilled Stadium next Sunday, while the Blues will take some confidence into what looms as an MCG blockbuster against Collingwood on the same day.

The Blues beat the Magpies by 23 points when the two clubs last met, in round four.

In-form Collingwood meet bottom-placed Melbourne at the MCG on Monday and a win for the Magpies will open up a significant buffer between the top seven clubs and rest of the competition.

Brisbane's 14.12 (96) to 10.14 (74) win over Fremantle at the Gabba on Sunday was their fourth straight, setting up an enticing clash with another of the AFL's form clubs, the Bulldogs, at the MCG on Saturday.

It took the Lions to seven wins at the season's halfway mark.

Seventh-placed Collingwood will join them on that mark with a win over the Demons on Monday, which would leave the Kangaroos six points adrift in eighth spot.

St Kilda coach Ross Lyon, whose club could have climbed into the eight with a win on Sunday, admitted the Saints lacked pace and depth in the midfield after they were shown up by the Bulldogs' running brigade for the second time this season.

"I can't keep getting the same result and keep going to the same group," Lyon said.

"We do need to build through there, we need to recruit speed, we need to add in speed and complement what we've got, so that would be a fair observation."

He said the club was still in the finals hunt, but needed a lift in confidence and consistency.

"We're 5-6, the obvious question you ask is 'are our finals chances over?' he said.

"Clearly it makes it more difficult, but we need to get to work on the things we need to be competitive for four quarters and at the moment we're inconsistent in that.

"If we can build our consistency clearly we're going to be in a lot of games of footy.

"At the minute it's frustrating for myself and the group."

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