Mayweather-Alvarez booked for Sept. 14

LAS VEGAS (AP) — Floyd Mayweather tweeted that he will fight Mexican fighter Canelo Alvarez on Sept. 14 at the MGM Grand.

Mayweather said Wednesday night on Twitter: "I chose my opponent for September 14th and it's Canelo Alvarez. I'm giving the fans what they want. It will be at the MGM Grand."

Alvarez sent a tweet in Spanish announcing the fight.

Mayweather is unbeaten in 44 fights, the last a unanimous 12-round decision over Robert Guerrero on May 4 in a welterweight title fight. Alvarez is 42-0-1. He unified the WBC and WBA super welterweight titles April 20 in San Antonio with a unanimous victory over Austin Trout.