Former Subway spokesman Jared Fogle is due in a US court to learn how much time he'll spend in prison on child porn and sex-crime charges.
US District Judge Tanya Walton Pratt is scheduled to sentence Fogle on Thursday after formally accepting his plea to one count each of travelling to engage in illicit sexual conduct with a minor and distribution and receipt of child pornography.
Fogle agreed in August to plead guilty to the charges following a July raid on his suburban Indianapolis home.
The resulting criminal case destroyed his career with Subway.
Prosecutors are seeking a 12-year sentence, while Fogle's lawyers have asked for five years.
But federal judges have wide discretion, and Pratt could go beyond the prosecution's recommendation.
The child-porn charge carries a maximum 20 years in prison, and the sex with a minor count is punishable by up to 30 years.
The 38-year-old Fogle admitted paying for sex with girls as young as 16 and receiving child pornography produced by Russell Taylor, the former director of The Jared Foundation, a nonprofit Fogle started to raise awareness and money to fight childhood obesity.
Authorities said Taylor secretly filmed 12 minors as they were nude, changing clothes, or engaged in other activities using hidden cameras in his Indianapolis-area residences to produce child pornography.
Taylor has agreed to plead guilty to child exploitation and child pornography charges.
Prosecutors said in a sentencing memorandum filed last week that Fogle received photos or videos from Taylor of eight of those 12 youths, and that some of those images were of girls as young as 12.
Fogle could have stopped Taylor from victimising some of minors, prosecutors have said, but he instead encouraged Taylor to produce additional child pornography.
Court documents detailing the charges against the 38-year-old father of two say that Fogle had sex at New York City hotels with two girls under age 18 - one of whom was 16 at the time - and paid them for that sex.
Fogle has agreed to pay a total of $US1.4 million ($A1.97 million) to his 14 victims, with each getting $US100,000. ($A141,000)
He became a Subway spokesman after shedding more than 90kg a college student, in part by eating the chain's sandwiches.
Subway ended its relationship with Fogle after authorities raided his suburban Indianapolis home in July.
