Sydney defender Sebastian Ryall will miss one match following his sending off in a 3-1 defeat away to Melbourne Heart on Sunday.
Ryall was shown a red card and effectively sealed his team's fate when he brought down David Williams inside the area to concede a penalty in the 54th minute of the A-League clash.
Williams duly converted the spot kick to put Heart 3-0 ahead, and although Joel Griffiths pulled one back for Sydney eight minutes later, there proved no way back for Frank Farina's men.
The decision to award a penalty against Ryall appeared harsh, and Sydney will be relieved not to lose his services for longer than the trip to face Perth Glory next Saturday.
Football Federation Australia's Match Review Panel (MRP) of Simon Micallef, Alan Davidson and Alan Contini determined the minimum one-match suspension was sufficient punishment for the transgression.
"The MRP has the authority to consider the incident as the Player was issued with a direct red card," the FFA said in a statement.
"The MRP confirmed that Sebastian Ryall will serve the Minimum Sanction of one (1) match, being the Mandatory Match Suspension."