Oleksandr Usyk of Ukraine retained his world heavyweight titles with a ninth-round knockout of Britain's Daniel Dubois in Wroclaw, Poland on Saturday.
Muhammad Ali was, at his peak, arguably the most famous man on the planet. His prodigious boxing talent was matched only by a towering self-belief.
Oleksandr Usyk of Ukraine retained his world heavyweight titles with a ninth-round knockout of Britain's Daniel Dubois in Wroclaw, Poland on Saturday.
Muhammad Ali was, at his peak, arguably the most famous man on the planet. His prodigious boxing talent was matched only by a towering self-belief.