Saul “Canelo” Alvarez stopped Kermit Cintron at 2:53 of the fifth round to retain his WBC junior welterweight title Mexico City.
Alvarez (39-0-1, 29 knockouts) put Cintron (33-5-1, 28 KOs) down in the fourth round with a straight right, which he landed with regularity, and hurt the former welterweight titleholder badly at the bell.
The 21-year-old Mexican then dominated Round 5. Alvarez landed a hard 1-2 combination with Cintron against the ropes, prompting the referee to jump in and stop the fight.
Alvarez was making the third defense of his 154-pound belt. Afterward, he said he wants to fight Floyd Mayweather Jr. in May.
Cintron has now lost three of his last four fights, meaning he might be finished as a title contender.
A full story will follow shortly.