Indonesia-based Christian Bekamenga scored five minutes from full-time in Guinea to clinch a 3-1 that gave the ‘Indomitable Cubs’ of Cameroon a four-point lead in Group C with one round left.
And Chelsea striker Salomon Kalou was among the scorers as Ivory Coast overwhelmed Zambia 4-1 in Abidjan to record a fourth consecutive Group B victory and build a five-point advantage.
It will be the third appearance of 2000 Sydney gold medalists Cameroon at the quadrennial tournament where national squads can include three over-age footballers.
Ivory Coast are going to the Games for the first time and could be a side to watch as experienced French coach Gerard Gili has moulded a potent mix of local and foreign-based footballers.
The third place reserved for Africa rests between Group A leaders Ghana and second-placed Nigeria, who will climb to the top if they defeat South Africa at home next March.
Ghana have represented Africa six times, most notably by finishing third at the 1992 Barcelona Games, and the highlight of five appearances by Nigeria was winning the 1996 edition in Atlanta.
