Ezekiel Elliott says the security guard he pushed in a Las Vegas altercation demanded $500,000 in an attempt to extort him ... this according to police docs obtained by TMZ Sports.
The Dallas Cowboys star's attorneys say they were emailed a complete list of demands from 19-year-old Kyle Johnson and his father, Kelly Johnson, after Zeke shoved Kyle at the Electric Daisy Carnival last May.
Police docs show Kelly emailed Zeke's attorneys just days after the altercation with AT LEAST 14 things he wanted from the running back to stay quiet on the incident .