Ghana midfielder Andre Ayew must apologise to the Black Stars technical team and players within seven days or face serious sanctions from the Ghana Football Association (GFA).The Marseille player reacted angrily to being substituted during Saturday’s 2013 Africa Cup of Nations qualifier against Malawi in Lilongwe.According to a reporter from Happy FM who was at the game, Ayew uttered unpleasant words directed at the coaching staff to register his displeasure with his satisfaction.The son of the legend Abedi Pele also gestured angrily before refusing to shake team manager Sabahn Quaye and his team-mates on the bench.This prompted a meeting between the technical team led by coach Kwesi Appiah and management of the Black Stars after the game to examine the incident.Ayew has now been given a one-week ultimatum to apologise to the technical team and the players or he will face serious sanctions.“We met and have decided to give him one week to apologise so we are waiting for that and if he fails to do so, then we will take the necessary actions,” the President of the Ghana FA, Kwesi Nyantakyi told Accra-based Happy FM.Ayew’s actions have received widespread condemnation in the local radio stations since journalists who returned from the game in Malawi have reported the incident.With the Africa Cup of Nations approaching the Ghana coach is seeking to clamp down on any acts of indiscipline to foster unity in the squad.Players like Sulley Muntari and Asamoah Gyan were previously punished after they broke the Black Stars code of conduct.