The Canelo Alvarez party train continues ... and Mexican singing legend Luis Miguel has hopped on board, playing blackjack in Vegas with the boxing star after that beatdown of Julio Cesar Chavez Jr!
After raging his face off Saturday, the Champ took his celebration to the MGM Grand blackjack tables Monday -- and while Canelo looks focused on his cards, "El Sol De Mexico" is all smiles seated right next to the big winner.
It's pretty interesting -- Canelo was the man of the weekend, but thanks to Miguel, he might not even be the biggest name at the table.