Saul "Canelo" Alvarez confirmed that he will face Caleb "Sweethands" Plant for the undisputed super middleweight title on Nov 6 in Las Vegas.
Mexican Alvarez (56-1-2, 38 KOs) holds three 168-pound titles (WBC, WBA and WBO) while American Plant (21-0, 12 KOs) owns the fourth, the IBF.
"This Nov 6th we'll put Mexican boxing on top," Alvarez wrote on Twitter on Thursday.
"Going for the missing belt!"
Both boxers dominated in their opponents in their most recent fights.
Alvarez claimed his third title when Billy Joe Saunders' corner threw in the towel in the eighth round of their May bout.
Plant successfully defended his title with a unanimous decision win over Caleb Truax in January.