Muhammad Ali might've floated like a butterfly and stung like a bee, but in this iconic photo from Neil Leifer, he roared like a lion.
This shot was taken immediately after Ali knocked out Sonny Liston in their 1965 WBA heavyweight title fight.
One quirky fact about this photo?
Due to licensing issues, the fight was held in Lewiston, Massachusetts, which had a population of only about 40,000 at that time.
The crowd of just 2,434 fans remains the all-time record for lowest attendance for a heavyweight championship match.
Photo Credit: Neil Leifer