Ghana coach Goran Stevanovic admits African champions Zambia pose a threat to their 2014 FIFA World Cup qualifying campaign.The Black Stars are in Group D together with 2012 Nations Cup winners, old foes Sudan and minnows Lesotho in the second phase of the African qualifiers.The Chipolopolo handed Ghana a heartbreaking 1-0 defeat in the semi-final of the tournament en route to lifting the trophy at the hands of Ivory Coast.Stevanovic, whose position is yet to be confirmed by the Ghana FA, remains optimistic his charges will progress to the last qualifying round.“Zambia is a very good team, very disciplined and tactical. We are in a very tough group with Sudan and the other team but I am very optimistic of qualification,” Stevanovic told MTNFootball.comThe Black Stars open their campaign against Lesotho on 1 June at home before travelling to face Zambia seven days later in Lusaka.The ten Group winners after the qualifiers in September 2013 will be paired into five home-and-away series to determine the continent’s finalists.Ghana have made two consecutive appearances at the World Cup finals since 2006.