Canelo Alvarez early favorite over Gennady Golovkin in 3rd bout

Canelo Alvarez, center left, and Gennady Golovkin face off during a weigh-in at T-Mobile Arena in Las Vegas, Friday, Sept. 14, 2018. Alvarez and Golovkin will fight Saturday night in a middleweight title bout. (Erik Verduzco/Las Vegas Review-Journal via AP)

Gennady Golovkin has always been the odds-on favorite heading into a fight until a third showdown with Canelo Alvarez surfaced.

In a report on boxingscene.com, Sportsbook BetOnline.ag has Alvarez at -260, making Golovkin the underdog for the first time in his professional career.

The odds, however, aren’t really that surprising considering Alvarez beat Golovkin by majority decision in their rematch back in September 2018.

Golovkin (40-1-1, 35 KOs) who turns 38 next month, also did not quite impress in his last fight against Ukraine’s Sergiy Derevyanchenko, whom he beat via unanimous decision last October in New York to win the vacant IBF and IBO middleweight belts.

The 29-year-old Alvarez (53-1-2, 36 KOs), meanwhile, scored a late knock out over Russia’s Sergey Kovalev to claim the WBO light heavyweight title a month later.

The two pound-for-pound fighters have reportedly agreed upon a third fight tentatively set for September 12.

They battled to a split draw in their first encounter in 2017, in a fight many believed to have won by Golovkin.