When Muhammad Ali knocked down Sonny Liston on May 25, 1965, a 22-year-old photographer named Neil Leifer was ringside. Decades later, the image he captured still has our attention.

According to an in-depth piece from the Washington Times citing decades-old FBI documents, the Feds suspected that the 1964 fight between Muhammad Ali, then Cassius Clay, and Sonny Liston was rigged.

Fifty years later, the AP is making available the black-and-white shot by AP photographer John Rooney of Ali standing over Liston, which won the World Press Photo award for best sports photo in 1965.

LISTON, Neil Francis - Of Fairfax, passed away peacefully at home on Tuesday, March 25th in Fairfax. Neil is survived by his loving wife Carmen Liston of Fairfax; loving father to Neil Liston, Jr ...

Liston’s efforts to land a clean punch against the constantly moving Cassius often were ludicrous. Officially it was an even fight at the end of six. Judge Bill Lovitt had Liston leading, 58 to 56.

Liston’s legacy went down with him that night. Paul Gallender is the author of “Sonny Liston — The Real Story Behind the Ali-Liston Fights.” Originally Published: July 21, 2013 at 3:09 PM MDT ...

More Info on Sonny ListonWednesday, November 19, 2003 Liston KO'd popular Patterson for title By Mike Puma Special to ESPN.com Signature Bout Sept. 25, 1962 - With an arrest record as long as his ...