Blatter's comments may be interpreted as an effort to widen his support base in Africa and Asia ahead of a possible plan to run again for the FIFA presidency despite saying that this would be his last term in charge of world football.
African and Asian teams also have struggled to break through at the World Cup and a European or South American team has won every title in the 80-year history of the showpiece.
Cameroon was the first African team to reach the World Cup quarterfinals in 1990 but since then only two others Senegal in 2002 and Ghana three years ago have got that far. South Korea is the only Asian team to reach the semifinals, making history at the tournament it co-hosted in 2002. In the last two World Cups, no Asian team and just one African team made the quarters.
Blatter said that was because not enough teams from those regions were being given a chance.
"At the end of the day, an equal chance for all is the paramount imperative of elite sport," he wrote. "From a purely sporting perspective, I would like to see globalization taken seriously."