Floyd wins in a 12-round unanimous decision that improved his record to 49-0 ,before 13,395 fans at the MGM Grand Garden. Judge Adalaide Byrd gave Mayweather all 12 rounds, 120-108.
Steve Weisfeld had Mayweather winning 118-110, and Dave Moretti scored it 117-111. With the win, Mayweather retained his World Boxing Council and World Boxing Association welterweight titles.
“You got to know when to hang it up,” said Mayweather, 38. “I’m close to 40 years old. I’ve been in this sport for 19 years. I have nothing left to prove.”