One of Canelo Alvarez’s former opponents thinks the Mexican superstar will end his storied rivalry with Gennadiy Golovkin in definitive fashion.

Alvarez, the undisputed 168-pound champion, will defend his four belts against the puncher from Kazakhstan in their trilogy on Sept. 17 at T-Mobile Arena in Las Vegas on DAZN Pay-Per-View. Alvarez and Golovkin fought to a controversial draw in their first fight in 2017, while their second meeting ended with Alvarez winning a close decision.

For Amir Khan, the outcome of the third Alvarez-Golovkin fight is too obvious. The recently retired and former 140-pound world champion from Bolton, England, thinks the 32-year-old Alvarez has too many advantages at this juncture in his career to lose to Golovkin, 40. In fact, Khan thinks Alvarez will even earn a stoppage. Khan, of course, personally has felt Alvarez’s power, when he got knocked out in the sixth round by the Mexican in their junior middleweight title fight in 2016.

“I see Canelo stopping Triple G,” Khan said in a live video chat on his Instagram. “Look, a lot of people are going to have things to say  about this, ‘Ah, Amir doesn’t know sh!t about boxing.’ But you know what the thing is, I really think that. It’s my opinion. Everybody has their own opinion.”

Khan, who announced his retirement from boxing in May, believes Alvarez has too many superior qualities to see him losing to Golovkin.

“So it’s a third fight, you got to remember that Canelo is at the peak of his career,” Khan said. “You get me? He’s old, he’s strong, he’s settled now. His weight is amazing. He holds the weight well. Power, speed. I think in that fight I could see Canelo [stopping Golovkin]. No disrespect to Triple G — what a beast he is — but you’ve got to remember he’s getting older, and he’s been in the game for a long time. He was in the same Olympics as me in ’04 … I just feel like Canelo is the fresher guy that hasn’t been in that many wars.”

Alvarez (57-2-2, 39 KOs) is coming off a unanimous points loss to light heavyweight titlist Dmitry Bivol in their 175-pound title fight in May. Golovkin (42-1-1, 37 KOs) last fought in April, a stoppage of Ryota Murata to unify the IBF and WBA middleweight titles.