Sierra Leone and the two others all dropped out of the top 27 on the continent, which implies they will now play preliminary round in the 2018 World Cup qualifying.
The latest ranking saw Sierra Leone move 28 places down on the log with the likes of FYR Macedonia, Antigua and Barbuda, Malawi, Azerbaijan and Lithuania all sits above the West Africa nations.
With Zimbabwe having been disqualified from the World Cup which leaves 53 of the 54 member associations in the preliminary draw.
The lowest 26 ranked sides on the continent in the July rankings will play over two legs in October 2015.
The winners of those ties advance to round two where they will join the remaining 27 highest-ranked teams from the region and face off in another two-legged play off.
The winners of those games will then move into Africa's final qualification round where five groups of four teams will meet both home and away.
The winner of each group will qualify for Russia 2018.
Meanwhile, Algeria remains as the top ranked African team in the continent and have climbed two places to number 19 globally.