A 21-year-old man with a criminal record has been accused of posing as a teenager, enrolling in a school in the US, and playing in a football league for five to 14-year-olds.

Julious Threatts has been charged with one count of trespassing on school grounds, and one count of “obstruction by disguised person” and violation of probation in Florida, myFOXtampabay.com reports.

Threatts played in a season opening game in the Tampa Bay Youth Football League after allegedly turning in a birth certificate, registration form and a guardian’s signature to the league stating he was just 14.

But league officials now believe he faked all the documentation.  The authorities were tipped off to the fraud by a phone call from the West Coast Children’s Football League – where Threatts had also allegedly played ball.  “Obviously it was a well-thought out plot, because he’s done it to other leagues, previously,” Scott Levinson, Tampa Bay Youth Football League president, said.

Coaches say Threatts convinced them and other players he was a teenager – and even his athletic ability failed to give him away, they said.  According to the Hillsborough County Sheriff’s Office, Threatts had enrolled in Webb Middle School as 14-year-old Chad Johnson.

The motive for Threatts offending was not clear, authorities said, but he was being held in the Hillsborough County Jail on no bond.