Two years later, it was "very much alive" and full of "joy", with a clear vision for its future, he said in his opening address to the FIFA Congress in Moscow on the eve of the opening match of the 2018 World Cup.
Infantino has put FIFA on a sound financial footing and ushered in the introduction of innovations such as the Video Assistant Referee system to analyse controversial on-pitch incidents during matches.
Russian President Vladimir Putin, who gave a short speech to the FIFA Congress, praised Blatter's successor.
Infantino, the former secretary general of football's European governing body UEFA, was little known before he took over sport's richest governing body.
The United States, Mexico and Canada, the three nations bidding to host the 2026 World Cup, helped gather support for his election.
It is thought Infantino will return the compliment by backing the bid, which faces competition from Morocco, in a vote of FIFA member nations later Wednesday.
The choice of the 2026 host nation will be made by up to 207 nations after the rules were changed to widen the voting college following the controversial ballots.
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