By Ibrahim Sannie
BBC Sport, Johannesburg
Sulley Muntari (R) has struggled to get into Ghana's team
Ghana midfielder Sulley Muntari has been disciplined for insulting his team-mates and coach after Saturday's World Cup match with Australia.
The Inter Milan player directed a foul-mouthed tirade at Ghana's Serbian coach Milovan Rajevac, Black Stars players told the BBC.
Rajevac apparently wanted to send Muntari home, but was dissuaded after a plea from captain Stephen Appiah.
The Ghanaian Football Association said he had been "accordingly reprimanded".
"We wish to state that Sulley Muntari reacted angrily and in a manner that was offensive to the team's code of conduct in the aftermath of Ghana's game against Australia," the GFA said in a statement.
"He was accordingly reprimanded for his behaviour with the player explaining that his actions were borne out of his frustration by the team's inability to record a win."
After verbally attacking the coach in the dressing room, Muntari continued with a diatribe on his team-mates on the team bus following the Group D 1-1 draw.
The intervention of Appiah and four other senior players led to Muntari apologising to Rajevac and his team-mates.
The Inter Milan player has cut a frustrated figure at the Black Stars World Cup since his position was taken by youngster Andre Ayew.
The incident threatened to disrupt Ghana's preparation for Wednesday's crucial clash with Germany which could determine whether the Black Stars will play in the last 16.