Speaking to AFP, disgraced Blatter said that "you can't just change willy-nilly rulings taken by the Executive Committee", adding that Infantino wanted to "revoke" the decision made in December 2010 to make the 2022 World Cup in Qatar a 32-team tournament.
The expansion, which was scrapped on Wednesday evening, was a pet project of Infantino, who pushed the idea despite the need for Qatar's fellow Gulf nations to put aside a two-year blockade and help to host the proposed larger tournament.
Saudi Arabia, the UAE, Egypt and Bahrain cut all ties with Qatar in June 2017, accusing Doha of supporting Iran and Islamist groups, and while Kuwait and Oman have not taken sides in the crisis Oman said in April it was "not ready" to host matches.
"Wanting at any cost to organise the World Cup in the (Gulf) region... he knew very well that was like going into a nest of vipers and it is not football's role to get involved with all that," said Blatter, 83, who is serving a six-year ban from world football following the worst corruption scandal in FIFA's history.
Blatter also confirmed that he will sue both FIFA and Infantino for issuing false information and damaging his reputation, saying that there would be a "legal assault" on both.