Floyd Mayweather Jr.'s Las Vegas mansion was robbed.
Floyd Mayweather Jr.'s Las Vegas mansion was burglarized ahead of his 40th birthday, according to USA Today.
No suspect has been identified at the time.
Mayweather, who has been retired for the past year, was allegedly robbed of $7 million worth of jewelry from his Las Vegas home in 2008.
Justin Bieber, Mariah Carey and other celebrities were in attendance at Mayweather's birthday party.