Tickets sales have been suspended for Adelaide's clash with the Brisbane Lions as the AFL considers the possibility of all 18 clubs being based in Victoria.
The South Australian government has decided against a lockdown after the state recorded five new COVID-19 cases on Wednesday.
Before the SA government's latest update, the Crows announced the sale of tickets for Saturday's round-16 clash with the Lions have been temporarily suspended.
"I don't think there's a problem with the game being played, it's just whether we have spectators and in which way we have spectators" SA chief health officer Nicola Spurrier said.
Despite the new SA cases all being from one family linked to the Northern Territory mine exposure site, the AFL will consider shifting Adelaide and Port Adelaide to Melbourne.
Former Port Adelaide greats Kane Cornes and Warren Tredrea have reported the two SA clubs will leave for Melbourne on Wednesday.
Sixteen of the league's 18 clubs are already in Victoria after Brisbane, Gold Coast, West Coast and Fremantle arrived in Melbourne on Tuesday night due to lockdowns in south-east Queensland and Perth.
It comes as the AFL scrambles to finalise its fixture just a day out from the opening match of the week amid a worsening health situation across Australia.
The Suns' Thursday night home clash with Richmond has already been moved from Metricon Stadium to Marvel Stadium.
The AFL is still weighing up the venue and time for Fremantle's home clash with Carlton, originally slated for Perth's Optus Stadium on Saturday night.
That game will either be played in Tasmania on Saturday afternoon or at GMHBA Stadium in Geelong on Saturday night.
The Dockers are determined for the match to be played in Launceston, ensuring completely neutral territory.
Fremantle are scheduled to play Hawthorn in Tasmania in round 17.
Sydney and GWS are already based in Melbourne, having flown out last week because of Bondi's growing COVID-19 cluster.
The Swans' home game against West Coast at the SCG has been shifted to GMHBA Stadium on Sunday, while the Giants will play at the MCG for the second-straight week when they face Melbourne on Saturday.
