Unbeaten Floyd Mayweather Jr and Saul Alvarez were involved in a minute-long stare down as they began an 11-city promotional tour in New York for their much-anticipated clash on 14 September. The 36-year-old Mayweather, who is WBA 'super' light-middleweight champion, will meet Mexican WBC title-holder Alvarez, 22, in Las Vegas. "I want to...
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