The bad blood between the pair has grown since Alvarez was temporarily suspended by the Nevada State Athletic Commission in April for testing positive for the banned substance clenbuterol, forcing a postponement of their planned May 5 rematch. And this time, there was no controversy from the judges.
They put on another show before a roaring crowd of 21,965, who crowded into the arena on the Las Vegas Strip with high anticipation in the biggest fight of the year.
Triple G was disappointed again, with two judges scoring the fight 115-113 in favour of Canelo and the third had it at 114-114. FightNights.com scored it 115-113 for Golovkin.
Los Angeles Lakers superstar LeBron James, like most boxing fans around the globe, had his eyes trained on the megafight between Gennady Golvkin and Canelo Alvarez, which the latter won via a majority decision. I gave the fight to Canelo. Standing in the center in round four, Golovkin connected with a solid right that caught Canelo's attention.
"If the people want us to do it again let's do it again, " Alvarez said.
'Unfortunately we didn't get the knockout but thank God we walked away with the victory, ' he said. "To judge my work is not my job". He was controlling the fight with that jab.
This carried on much the same in rounds eleven and twelve, with Canelo showing a granite chin to stand up to a hailstorm of Golovkin power shots.
"Congrats Canelo and his team".
"He's not a humble guy but I'll humble him on Saturday". "To Eddy and Chepo who have been here by my side since I was 13 years old".
When Canelo heard the decision, he was mobbed by his team, with tears of joy coming down his face.
"'It is one of the happiest days of my life", said Canelo, dressed in bright green suit.
A year after the two fought to a draw, the second fight was nearly as close. This time, the usually brash Sanchez was humbled.
David Lemieux of Canada set himself up for a possible title fight by stopping Ireland's Gary O'Sullivan with a crushing left hook at 2:44 of the first round in a middleweight clash. I promised the people I would go for a knockout. I can't complain about the decision but it's close enough to warrant a third fight. Every great fighter has a great rival.
Since 2016, Golovkin has looked more vulnerable.