FOR ONCE, Port Adelaide was on the receiving end of a late-quarter comeback after Carlton side desperate to play finals stormed home for a one-point win at AAMI Stadium.

45,127 fans poured in for the last match at the ground, an occasion marked by Port wearing the club's traditional 'prison bar' jumper, and for the first three quarters they were loving every minute of it.

But just when it looked as though the Blues had thrown their finals hopes into other clubs' hands, Mick Malthouse read them the riot act.

And riot they did, turning the tide by booting four goals in the first eight minutes of the last quarter to revive their season.

And the visitors took the lead for the first time in the game when unheralded 14-gamer Tom Bell slotted a 45-metre shot on the run with five minutes remaining.

In a pulsating finale Port's Matthew Broadbent had the chance to deliver his side a win with a 50m attempt with just 27 seconds to go.

But his shot hit the post, leaving Port one-point adrift.

Carlton coach Mick Malthouse said there was always a flicker of hope for his side, the trick was to keep it dancing.

"You can't blow it out, you've got to make sure that flicker is still a credible, achievable, positive flicker," Malthouse said.

"Otherwise you snuff that out, the game's dead.

"Once we started to run the football, then put the scoreboard pressure on, that made Port play differently."

Blues captain Marc Murphy kicked three goals and, along with the likes of Bryce Gibbs (26 touches) and Andrew Walker (25 possessions) triggered the finals-saving fightback.

Carlton's mosquito fleet - Eddie Betts, Chris Yarren and Jeff Gartlett - all kicked two goals.

Port's Brad Ebert was a standout but faded late, while his teammates Jay Schulz (three goals) and Kane Cornes (34 disposals) were prominent.

Former Power captain Dom Cassisi faces an anxious wait, with his second-term sling tackle on Murphy certain to attract attention from the match review panel.

Cassisi, holding both hands of the Blues captain, threw Murphy to the ground in a late tackle penalised by the umpire.

Both clubs will feature in elimination finals next week - against Richmond or Collingwood, depending on other results.

While buoyed by the fact his side will feature in the finals next week, Port coach Ken Hinkley was disappointed his side surrendered victory.

"They were able to turn the game around and play it on their terms…[we] let slip in the last quarter all our good work," Hinkley said.

"We tried our guts out to be honest."

FINAL SCOREBOARD
PORT ADELAIDE 4.3 8.9 12.11 15.13 (103)
CARLTON 1.5 3.7 7.12 15.14 (104)

GOALS
Port Adelaide: Ebert 4, Schulz 4, Westhoff 2, Monfries, Boak, Logan, Young, Wingard
Carlton: Murphy 3, Garlett 2, Yarran 2, Betts 2, Simpson, Kreuzer, Gibbs, Curnow, Waite, Bell

BEST
Port Adelaide: Ebert, Cornes, Schulz, O'Shea, Colquhoun, Boak
Carlton: Murphy, Gibbs, Curnow, Walker, Betts, Yarran

INJURIES
Port Adelaide: Robbie Gray (quad) replaced in selected side by Brent Renouf
Carlton: Scotland (quad) replaced in selected side by Nick Duigan

SUBSTITUTES
Port Adelaide: Lewis Stevenson replaced Sam Colquhoun at three-quarter-time.
Carlton: Nick Duigan replaced Levi Casboult at half-time

Reports: Nil

Umpires: Nicholls, Meredith, Pannell

Official crowd: 45,127 at AAMI Stadium