Andy Ruiz Jr. had six weeks to prepare for the fight of his life.
He'll have a lifetime to celebrate one of boxing's biggest heavyweight stunners.
A massive underdog just like Buster Douglas, Ruiz knocked down British champion Anthony Joshua four times, and the final two in the seventh round proved the decisive blows.
Ruiz, the first boxer of Mexican descent to win a heavyweight title, capped one of boxing's epic upsets to win Joshua's shares of the heavyweight championship Saturday night at Madison Square Garden.
"I just feel so good, man," Ruiz said. "This is what I've been dreaming about, this is what I've been working hard for. I can't believe...