The latest FIFA ranking has placed Nigeria on 44th in the world.
The ranking, which was released on Thursday, indicates that Nigeria moved only one spot up from 45th in last month’s ranking.
Argentina, Bosnia-Herzegovina and Iran, Super Eagles Group F opponents in the World Cup are placed 7th, 25th and 37th, respectively.
However, the Super Eagles remain sixth in Africa, with Cote D’Ivoire ranked first.
The next ranking will be released on June 5, 2014, seven days to the World Cup.