The fight at Madison Square Garden was a first at 168lb for Alvarez, who also holds two world titles in the 160lb middleweight division. It's no coincidence, perhaps, that Canelo's first DAZN fight will happen a week after HBO's exit from boxing last Saturday.
He knocked Fielding down four times throughout the match.
In this lopsided fight, Fielding responded to Canelo's relentless body attack in undeniably questionable fashion, choosing to engage the powerful Mexican in close rather than use his significant height and reach advantages to stay out of danger.
A blow to the head sent 31-year-old Fielding to the floor for a third time in the third round, and it was when Alvarez's relentless body shots sent Fielding crashing a fourth time that the referee decided he had seen enough.
"We'll have to see [whether he fights at 168 pounds again]", Alvarez said.
Alvarez, who is just off the back of two mega fights against Gennady Golovkin, is amongst the top pound-for-pound fighters in the world and was heavy favourite fighting Britain's Rocky Fielding.
"I want to win, get back to the hotel, have a pizza with my girl and my family then we fly off to Florida on Monday for a holiday".
The result was a fait accompli the moment the bout was announced, but the impact of Alvarez's win at Madison Square Garden - his first fight since 2008 outside Southern California, Las Vegas, Texas or Mexico - will be the most intriguing subplot to watch moving forward into 2019.
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"I dared to be great, lived a dream - but I will come again and come back".
Then the call came to face Tyron Zeuge in the champion's backyard in Germany in July and Fielding stopped him in the fifth.
Another mocked Fielding for dropping to one knee multiple times during the fight.
"I know it's going to be a tough fight but I like the challenges and we're prepared to make history", said Alvarez, who defeated middleweight rival Golovkin by a controversial majority decision in September.
I felt good, I felt strong, I didn't have to dehydrate myself to make weight. I thought I could try to mix it with him when I shouldn't have. We've kept in touch, he's given me some good messages and he's coming out for the fight.
Even though Canelo is making his first entry into super middleweight against the taller Fielding, De La Hoya echoed his fighter in thinking there will be a knockout on Saturday night. Gilberto Ramirez is the WBO Super Middleweight Champion of the World.
Jacobs lost to Golovkin in March 2017 but insists his sights are firmly set on Alvarez: "It's more so now for Canelo".