Ghana players were on Thursday morning schooled by a FIFA referee before they begin their 2014 World Cup campaign.

The reason is to educate players on the rules of the game and help make the tournament a clean one.

The Black Stars arrived in Maceio on Wednesday night after a +10 hours flight from Washington en route Salvador.

Ghana will hold its first public training session at the Estadio Rei Pele on Friday where 10,000 tickets have been given out for free to fans to watch them train.