PORT ADELAIDE’s true believers will converge on Rundle Mall one last time this AFL season when they prepare to take over town for Sunday’s elimination final against Richmond.

Rundle Mall will be jam-packed from 11:00am when entertainment gets underway in the build up to the traditional march en masse to the Adelaide Oval.

Supporters who are unable to get a ticket to the game will be able to enjoy the match on the big screen in the heart of Rundle Mall from 2:00pm.

The Mall will have a swathe of double beanbags so fans can sit back and relax while they watch Port Adelaide don its famous black-and-white guernsey for just the fourth time in the national competition.

But it will be the traditional March from the Mall that draws the biggest crowd to the the city's premier retail precinct, with the club's teal sea (possibly donning plenty of black and white) set to depart on the March at 1:30pm.

A record-breaking March is expected, with the legion of true believers expected to clock over 10,000 on the afternoon.

The Heathfield Renegades will lead the March with their usual aresenal of brass and drums and the Port Adelaide Cheer Squad will bring their flags and colour for the journey to the Oval.