ADELAIDE, AUSTRALIA - AUGUST 04: General view from 50 metre line of the Riverbank stand before the round 20 AFL match between the Adelaide Crows and the Port Adelaide Power at Adelaide Oval on August 4, 2018 in Adelaide, Australia. (Photo by Mark Brake/Getty Images)

This weekend's Showdown clash between the Crows and Power has been given the green light to allow fans to attend under reduced capacity.

Saturday night's clash, which will be the 50th instalment of the rivalry, will be capped at 15,000 attendees under SA Health's COVID-19 guidelines, per AFL.com.au.

Attending fans will be allocated designated aisles to enter Adelaide Oval, with fans needing to arrive at the ground no earlier than 6:10pm.

Under the enforced directions, fans will also be required to wear fitted face masks throughout the night, and are able to remove them when eating or drinking.

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ADELAIDE, AUSTRALIA - MARCH 07: Sam Berry of the Crows runs with the ball during the 2021 AFL Community Series match between the Adelaide Crows and Port Adelaide Power at Flinders University Stadium on March 07, 2021 in Adelaide, Australia. (Photo by Daniel Kalisz/Getty Images)

“Any game we can play in front of our members is always going to be welcomed and much appreciated,” Adelaide chief executive Tim Silvers said.

“In a perfect world we would like to have a full house so as many of our supporters can attend but we obviously understand and support the measures that have been put in place to keep everyone safe.

“We also acknowledge this situation will not cater for all of our passionate members and we trust they will be understanding given these uncertain and challenging times.”

ADELAIDE, AUSTRALIA - MAY 11: Taylor Walker of the Crows competes with Scott Lycett of the Power during the 2019 AFL round 08 match between the Port Adelaide Power and the Adelaide Crows at Adelaide Oval on May 11, 2019 in Adelaide, Australia. (Photo by James Elsby/AFL Photos/Getty Images)

Port Adelaide currently hold bragging rights over their cross-town rivals, having won 25 matches between the two sides.

Should Adelaide claim four points this weekend, each side will be tied for Showdown victories.

Port Adelaide revealed on Tuesday that they won't be able to wear their heritage 'prison bar' guernsey on Saturday night.