The Hearts right-back was ruled out of the Socceroos' World cup group stage clash against the African nation after picking up a knock in the 4-1 defeat to France.
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But to the surprise of fans, he was included in the starting XI for the must-win clash in Qatar.
Fans were quick to comment on the Twitter post to remind Australia that Atkinson was unavailable.
And after being alerted of their error, Australia swiftly deleted the post, before naming Fran Karacic in place of Atkinson.
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One supporter tweeted: "Atkinson injured lads."
Another messaged: "This is wrong… Atkinson supposedly not playing."
A third added: "I thought Atkinson was injured??"
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This fan remarked: "This is wrong… Atkinson supposedly not playing."
Meanwhile one stated: "That's not the team. Krancic is in for Atkinson."
And after being alerted of their error, Australia swiftly deleted the post, before naming Fran Karacic in place of Atkinson.
Atkinson had a difficult match midweek where he was up against Paris Saint-Germain forward Kylian Mbappe.
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Speaking after the game, Atkinson gave a brutal self-assessment of his performance.
He remarked: "It's an eye-opener.
"There's a reason why he's earning $200million-a-year and I am where I am."
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