Former champions Nigeria, Democratic Republic of Congo, Ivory Coast and South Africa have earned the right to be favourites in the Africa Cup of Nations (AFCON) quarter-finals on Friday and Saturday.

But, given a tournament in which seven of the top 10-ranked teams, led by 2022 World Cup semi-finalists Morocco, have been eliminated, that tag could prove a curse.

Here, AFP Sport previews the ties with Guinea and Mali hoping to go one step further after previously being runners-up, while Angola and Cape Verde pursue first AFCON semi-finals appearances.

Napoli star Victor Osimhen came to the tournament as an acclaimed goal-scorer, but it is his incredible workrate in searing heat which epitomises the Nigerian title challenge.

Concerns about the William Troost-Ekong-marshalled defence have proven unfounded with only one goal conceded in four matches and, particularly against Cameroon, the Super Eagles impressed.

Angola are one of the nations that have mocked the form book in the Ivory Coast, winning three straight matches after never managing more than one win at a time in eight other appearances.

Gelson Dala is the joint second highest scorer with four goals and Mabululu has notched three ahead of a clash between the highest and lowest ranked survivors.