Malawi, Mozambique, Rwanda and Sudan are among the teams through to the final round of CAF qualifying, but Senegal and Congo DR are out.
Senegal were the only major side to fall as Round Three of the African qualifiers for the 2010 FIFA World Cup South Africa entered the final straight.
With so many places still up for grabs and a plethora of potential outcomes, FIFA.com takes you through the possible scenarios group-by-group.
With 17 places in the next round up for grabs on the final weekend of the first group phase, FIFA.com previews the action in Groups 1-6.
Algeria captain Yazid Mansouri speaks to FIFA.com about the progress that his team has made and a tricky trip to Liberia, which will seal their fate.
Algeria have stuck with the tried and tested for their decisive FIFA
World Cup African Zone Group 6 qualifier in Liberia next week.