Long before the Paul brothers and other YouTube stars dominated pay-per-view matches, the world of boxing was defined by once-in-a-generation talents, with fighters like Muhammad Ali, Mike Tyson and George Foreman hitting the ring with their gloves on. But with celebrated athletes come even more celebrated photos, split-second snapshots capturing just how incredible the sport was in its heyday. 

From Ali defending his status as boxing's GOAT to legendary TKOs as captured from above, here are the 33 most iconic photos in boxing history.