Scores of 114-114 and 115-113 in Golovkin's favour appeared to fairly reflect the narrow margin between the two men - but ringside judge Adelaide Byrd's weird scorecard, ruling in favour of Canelo by 118-110, left many observers baffled.
As fans, we were happy because we get to see the fight again.
Many Mexicans are less fervent about Canelo since his failed drugs tests but will support him, especially on Mexico Independence Day Life is less complicated for the Golovkin followers and they cheered him to the rafters. "When he weighs in [Friday] at 160 pounds, that will be the 390th time he has weighed in at 160 pounds [as an amateur and pro]".
The bout was originally slated for May 5th earlier this year.
Alvarez blamed the positive test on contaminated meat but Golovkin has questioned the 28-year-old's character over it.
Eventually, to the delight of fight fans around the world, the two parties came together for a third time on a deal that will see the duo go to war for the WBA and WBC middleweight world titles, nearly a year to the day since their first meeting.
But the consequences of Canelo's failed drugs test were enormous for Golovkin, too. I defeated the weigh-in, now it's time for me to defeat him on Saturday.
Watch the Canelo Alvarez-Gennady Golovkin undercard live and free at 6 p.m. ET. Should Alvarez be dominated or knocked out, it would raise suspicion about not only previous PED use but also where he truly ranks among this era's great fighters. "I want to punish him for all the bad things that he and his team have done".
"I think this fight could be it".
"He's promised the fans he's going to knock him out, but in order to do that you have to be in range", Sanchez said.
Golovkin is unbeaten with a 39-0-1 record, while Alvarez is 49-1-2, with his only loss coming against Floyd Mayweather in 2013. I would advise him to retire - I really would.
The two middleweights meet exactly a year after their first fight was controversially declared a draw, despite most ringside spectators calling the fight a win for GGG. "Injection marks were evidently there", Golovkin said.