Prosecutors say the 28-year-old Akron man threatened violence toward Wells and his family if the former Arizona Cardinals running back didn't pay between $65,000 and $175,000.
Conley's attorney says Wells and his brother helped arrange a bad drug deal for Conley and another man and took their money.
Wells adamantly denied that. He isn't charged with a crime.
Wells was released by the Cardinals in 2013, later tore his Achilles tendon and hasn't played since then.