Unbeaten Eleider Alvarez stunned Sergey Kovalev Saturday, knocking the Russian champion down three times in the seventh round to capture the World Boxing Organization light heavyweight title.

Kovalev was the more aggressive of the two boxers and was winning the majority of the rounds heading into the seventh.

But then he let his guard down and Alvarez seized the opportunity to land a barrage of heavy punches and go on to win the fight in one of the biggest boxing upsets of the year.

Stevenson kept side stepping Alvarez and that left him with the next best option – to make a fight with dangerous Russian power puncher Kovalev.

Kovalev displayed some of that might early in the bout but Alvarez waited patiently for his chance, biding his time with a steady right jab, then unloading the more vicious shots in the seventh round.

The ending was all the more shocking as Alvarez was not known for his punching power coming into the fight.

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