LONDON — The presumption that Sepp Blatter will rule FIFA on his terms for as long as he wants to will, finally, be challenged.

With the election for presidency set for next June, not one person within the 209 nations of the Fédération Internationale de Football Association has dared to put his or her name on the ballot.

But an outsider, the former French diplomat Jérôme Champagne, confirmed this week that he would run and challenge the way that FIFA governs world soccer.

Champagne has nothing to lose, but can he win?

His manifesto, written at the start of this year when he first declared himself as a candidate, is primarily aimed at the national soccer associations. They are the power. One nation, one vote, directly elects the president every four years.