Sarkozy, 69, faces a year in prison, but is expected to ask to be detained at home with an electronic bracelet — as is the case for any sentence of two years or less.
Blatter, who has long said he voted for the United States, made the admission in his first major interview since being acquitted in July of financial misconduct at FIFA.
Nicolas Sarkozy, who served as president from 2007 to 2012, was convicted of bribery and influence peddling. He was sentenced to three years in prison, with two of the years suspended.