That's a real photo, that was cleaned up to remove scratches. The recipient of the devastating right is Jersey Joe Walcot who lost the title with that lone shot in the thirteenth. Off to the right is referree Ruby Goldstein.

This photograph was taken by photographer Herb Scharfman at the end of the Walcott-Rocky fight.

That punch is still regarded as the most devastating right ever thrown in a boxing ring. Marciano went on to become the only undefeated heavyweight champion in history (49-0). His knockout percentage of 87.75% still stands as the highest of any heavyweight champion.