Andy Ruiz Jr. shakes up the world by beating Anthony Joshua, knocking the Briton down 4 times in a heavyweight shocker

• Andy Ruiz Jr. just destroyed Anthony Joshua.
• Ruiz Jr. a late replacement for the original opponent Jarrell Miller, knocked Joshua down four times en route to a seventh round stoppage win at Madison Square Garden in New York City.
• Visit Business Insider's homepage for more stories.

Andy Ruiz Jr. just shook up the world by knocking Anthony Joshua down four times en route to a seventh round stoppage win in New York City.

It was supposed to be a showcase fight, it was supposed to introduce the American market to Britain's ambassadorial champion, but it was nothing short of a disaster that sees Joshua's global stock plummet.

Ruiz Jr. agreed a deal to challenge Joshua only four weeks ago as the original opponent Jarrell Miller failed three drug tests.

He was mocked for his weight, with calls of "you fat b------" bellowed from the crowd between rounds, but Ruiz Jr. fought the fight of his life and is now the unified heavyweight champ.

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