Partick Thistle defender Aaron Muirhead has been suspended for an extra two games for head-butting an opponent during .
The 22-year-old had already received an automatic two-match ban for the act of violent conduct against Queen of the South's Chris Higgins.
A Scottish FA disciplinary hearing delivered the additional suspension.
It means he will be on the sidelines until the final game of the season, away to Dumbarton.
Muirhead had hit out at the Doonhamers' captain after having his penalty kick saved in the final minutes of extra time in the match won by the the Dumfries club in a penalty shoot-out.
The Thistle player was found guilty of breaching rule 201 of the SFA's judicial panel protocol.
A statement on the First Division leaders' official website read: "An SFA disciplinary hearing today handed Aaron Muirhead an additional two-game ban following his red card against Queen of the South.
"The offence came with an automatic two-game ban, which he will serve against Airdrie United and Raith Rovers.
"He will, however, also now sit out the games with Falkirk and Dunfermline Athletic before returning for the final game of the season at Dumbarton."
In addition, an outstanding one-game suspension meant Muirhead missed , which stretched Thistle's lead to five points.