Floyd Mayweather and Canelo Alvarez's billion-dollar rematch ain't happening -- not now, not ever -- so says the Mexican superstars' promoter, Oscar De La Hoya.
Remember, the boxing legends fought back in 2013 ... and Canelo -- who was only 22 years old at the time -- was easily handled by Floyd, losing by majority decision.
The two have been talking trash to each other publicly ever since -- Canelo's mocked Floyd for fighting Conor McGregor. Floyd went after Canelo for his positive PED test in 2018.