Alleged attacker: Steven Nigg is accused of beating up Jared Fogle

Convicted pedophile Jared Fogle has been subjected to a prison yard beating by a 60-year-old armed robber with a hatred of child molesters.

The former Subway spokesman, who is serving a 15 year jail term for trading child pornography and having sex with underage prostitutes, was tackled to the ground and then punched repeatedly in the face by a fellow inmate on January 29.

The 38-year-old was left with a bloody nose, scratched neck and swollen face following the attack by criminal Steven Nigg, 60, at Colorado's Englewood FCI.

According to the official report filed at the prison, Nigg, 'assaulted Fogle by pushing him to the ground and striking Fogle multiple times in the face with a closed fist.'

'Fogle sustained a small cut on his hand and an abrasion on his left knee from the concrete during the assault.'

Nigg, who is serving time on gun charges related to a decades-old crime spree through Arizona, assaulted Fogle in the prison's recreation yard.

The armed robber walked away from the fight unscathed but was punished with time spent in solitary confinement, TMZ reported.

Nigg - who has been behind bars on and off from 1976 was reportedly angry at the many child sex predators housed in the low security facility.

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The former Subway spokesman was attacked by a fellow inmate in the prison yard at Englewood FCI

Fogle rose to fame when he appeared in the fast-food chain's adverts, after shedding more than 200lbs (91kg), in part by eating Subway sandwiches

Fogle rose to fame when he appeared in the fast-food chain's adverts, after shedding more than 200lbs (91kg), in part by eating Subway sandwiches.

But a raid on his suburban Indianapolis home and the resulting criminal case destroyed his lucrative career with the sandwich restaurant chain.

He pleaded guilty to one count each of travelling to engage in illicit sexual conduct with a minor and distribution and receipt of child pornography.

Fogle, a father-of-two, also admitted having sex with two prostitutes aged under 18 at hotels in New York City.

His earliest possible release date is July 11, 2029 - just a month before his 52nd birthday.

His attacker, Nigg, is scheduled for a 2024 release from prison.

He initially served time in prison from 1976 to 1990 when he and partner in crime carried out three armed robberies, stealing $670.

Having been set free, Nigg moved to Wisconsin where he moved in with his father, married and began working at a consignment shop.

But in 2010 the convicted felon was found guilty of possession [and selling] of firearms and sent back to prison.

Account: This is the prison incident report for the January 29 assault upon Jared Fogle by Steven Nigg