Michael Oti Adjei of the BBC reports that Ghana coach Goran Stevanovic has said that some players used witchcraft against their own teammates
at the Africa Cup of Nations, at which Ghana fell to eventual champ Zambia in the semifinal.
"We all need to help in changing some players' mentality about using 'black power' to destroy themselves, and also make sure we instil discipline and respect for each other," Stevanovic said.
"It has always happened, but players have used it to protect themselves and normally in search of luck," said Sarfo Gyami, who was a member of the Ghana team at the 1992 Nations Cup, told BBC Sport. "I have never heard of a situation when players have used it against their own colleagues. That is a very bad situation."