The defender was sent off early in Wednesday’s 3-1 defeat at Pittodrie after catching Charles Dunne with his arm when the Saints defender appeared to block his run.
Speaking after the game, Dons caretaker manager Barry Robson said: “I’ve not seen the red card yet, but when I saw it in real time, I thought it was our free-kick.”
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Hide AdThe appeal, which the Dons confirmed on their official website, is set to free McCrorie to face Motherwell in Saturday’s cinch Premiership encounter at Pittodrie.


The former Rangers player will serve a two-match ban if the appeal fails with Aberdeen’s subsequent matches coming against Celtic and Livingston.
An Aberdeen statement read: "The Club can confirm it has appealed the red card shown to Ross McCrorie during Wednesday night’s cinch Premiership game against St Mirren at Pittodrie. A further update will be provided once we have been notified of the outcome of the appeal."