The Super Eagles on Wednesday moved one step up in the monthly FIFA rankings to occupy 44th spot from their previous 45th position in the April rankings.
The Coach Stephen Keshi tutored side were virtually inactive in the period under review as FIFA rightly admitted that the May edition just released reflects the results of just 13 new matches.
The world football governing body also pointed out that no fewer than 143 teams retained their place in May from the last ranking in April.
While the Eagles moved up one notch in the world rankings, it was quite inconsequential for AFCON champs in the ordering of African teams as they remain 6th while Ivory Coast remain the number one team on the continent having been ranked in the 21st position in the world.
Egypt, Ghana, Algeria and Cape Verde are the other teams ranked above Nigeria. Tunisia Cameroun, Guinea and Mali complete the roster of the top ten teams in Africa
Spain are still ranked top in the world; a position they have monopolised since September 2012. They are being followed by Germany (2nd, unchanged) and Portugal (3rd, unchanged).
From the May rankings, there was some notable movement in the top ten, however, with Brazil climbing two places to fourth to lead the pack of four South American teams ahead of Colombia (5th, down 1), Uruguay (6th, down 1) and Argentina (7th, down 1).
It is Brazil’s best position on the global ladder since July 2011.
The biggest climb, however, was achieved by Mauritania from North-West Africa (139th, up 13), thanks to two wins in CAF Africa Cup of Nations qualifying.
The next FIFA/Coca-Cola World Ranking will be published on June 5.
The Ranking for African teams came as follows:
21  Côte d’Ivoire                   830
24  Egypt                                798
25  Algeria                              795
38  Ghana                              713
42  Cape Verde Islands      665
45  Nigeria                             620
49  Tunisia                             597
50  Cameroon                      583
51   Guinea                             580
59   Mali                                  545
In the international level, the ranking came as follows:
Spain                                   1460
Germany                            1340
Portugal                             1245
Colombia                          1186
Uruguay                             1181
Argentina                          1174
Brazil                                  1174
Switzerland                       1161
Italy                                      1115
Greece                                1082