The San Diego County Sheriff's Department said Tuesday the 1971 ring was scheduled to be sold Nov. 20 at an auction house in Laguna Niguel with an opening bid of $44,000. The ring was reported stolen in 1988 from a San Diego bar that displayed sports memorabilia.
Investigators say Alworth received a phone call last month demanding $40,000 for the ring. The former wide receiver for the San Diego Chargers and the Dallas Cowboys contacted authorities.
No arrests have been made.