Golovkin (38-0-1, 34 KOs) was originally scheduled to rematch Alvarez at the T-Mobile Arena in Las Vegas in a 5 March blockbuster.
Golokin defended his WBA (super), WBC and IBO titles, scoring a second-round knockout of Martirosyan on Saturday.
GGG cornered Martirosyan against the ropes before unleashing a rapid-fire combination that proved too much for the challenger to evade. He started the eight-punch onslaught with a short left and pounced on the damaged Martirosyan, finally dropping him with two powerful lefts.
So Golovkin's camp went to work on a late replacement bout for StubHub Center's outdoor ring among Los Angeles' savvy boxing fans. He got to his knees but was in no shape to continue and Reiss waved it off at 1:53 of the second. But Golovkin didn't want to sit on his fists - not at 36 years old, and not after fighting just once in the previous 14 months.
Live stream Golovkin v Martirosyan with a VPN Below we've listed all of the best places to live stream the Golovkin v Martirosyan fight online.
Undisputed women's welterweight champion Cecilia Braekhus made history in the final run-up to the main event, defeating challenger Kali Reis via unanimous decision in the first women's bout aired on HBO.
Alvarez, though, clearly wasn't embraced by this crowd, who booed every time his name was mentioned.More news: First Lady of the United States Melania Trump unveils her formal platform
More news: Day holds off big challenge to win PGA title
More news: European visitor may have exposed WNYers to measles
There are significant differences between Golovkin and many of today's crop of fighters, several of whom have copied the Floyd Mayweather approach of money-first, often at the expense of entertainment and competitive (or risky) fights. A fighter turned pro at the age of twenty, Vanes fought and won thirty-two straight times before a technical draw against Erislandy Lara in 2012.
He pounded Martirosyan, a 2004 U.S. Olympian, with crushing blows he simply couldn't withstand.
Granted, it was a fight he was supposed to win but Armenian Vanes Martirosyan showed early on that Golovkin was more than there to be hit. "It wasn't one punch, it was all the punches". It was all of his punches.
Just a few weeks before he got the fight, Martirosyan said he asked his wife who her favorite boxer was beside him.
Nonetheless, Martirosyan (36-3-1, 21 KOs), 32, was viewed as such a weak opponent for Golovkin that the IBF, which sanctions one of the three major world titles GGG holds, refused to approve the fight. "It wasn't my fault my first opponent couldn't fight".
Before the fight, he pegged the odds of facing Alvarez in September, when Alvarez's suspension will have ended, at 10 percent. None of the major networks have picked up the fight as it seems none of them think it's worthwhile streaming. "Of course, I want to", Golovkin said.