Celtic have lost their appeal against Scott Brown's dismissal during the Old Firm derby defeat on Sunday.
Referee Dougie McDonald has backed his original decision to send off the Scotland midfielder following a clash with Kyle Lafferty during Celtic's 1-0 defeat at Ibrox.
Brown will now miss a total of three matches through suspension, including Sunday's Clydesdale Bank Premier League trip to Falkirk.
With the red card adding 12 points to Brown's disciplinary record, the Celtic skipper will also miss two additional games following his immediate automatic one-match ban.
The 24-year-old, who netted the only goal in Scotland's friendly win over the Czech Republic on Wednesday night, will sit out SPL games against St Johnstone at Parkhead and St Mirren in Paisley later this month.
A SFA statement read: "In accordance with the provisions for claims of wrongful dismissal, the referee, Dougie McDonald, was requested to review the circumstances of Scott Brown's sending off against Rangers.
"The referee has indicated that he is content with his decision."
The decision will further fuel Celtic's ongoing dispute with the SFA over refereeing standards, which was made public by a club source days before the Ibrox defeat opened up a 10-point gap at the top of the SPL.
A statement on Celtic's official website hours after the loss appeared to question McDonald's impartiality after the referee punished Brown but not Lafferty.
Both players grappled with each other but the Scotland player moved his head into the chest of Lafferty, who fell down dramatically before getting up quickly.
The statement on the club's website read: "It immediately seemed to be a controversial decision to everyone in the ground, and certainly, any fair-minded person looking at the incident at the time or subsequent TV replays could see it wasn't a red card.
"Certainly, the Celtic support in the Broomloan Road Stand and beyond were left mystified and angry at yet another refereeing decision in a derby game this season which has gone
against the club.
"In the first derby match of this season at Ibrox back in October, Celtic were denied a blatant penalty by referee Craig Thomson, who admitted after the game that he had made a mistake.
"And in the game against Rangers at Celtic Park, referee Steve Conroy disallowed a Marc-Antoine Fortune goal, though replays showed that there was nothing wrong with the goal."
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