Guinea dropped three places to 71st in the recently released Fifa ranking.
After losing their last two friendly games against Gambia and Benin, Paul Put's side lost three spots from their previous position [68] in the last global ranking that was released in April.
The Belgian tactician who has expressed concern over his readiness for the Afcon will hope this latest development motivates his team to work harder as they intensify preparations for the biennial showpiece scheduled to start in Egypt on June 21.
Guinea’s Afcon Group B opponent, Nigeria also headlined the list of African countries to drop positions in the recent world ranking.