St Mirren were successful in challenging Richard King's sending off in Saturday's loss to Motherwell and his ban was overturned.
St Mirren defender King, 24, was sent off in his side's 5-0 defeat in Paisley on Saturday.
With his team trailing 3-0, the centre-back was involved in an incident with Callum Slattery and the Motherwell player fell to the ground.
Referee Calum Scott did not see the incident, issuing the red card on the advice of his assistant, and VAR did not intervene to ask him to review footage.
The independent panel ruled King should not have been dismissed and he will be available to face Livingston in Saturday's league game at Almondvale.
