Mayweather, who has faced several charges of domestic violence, said last July that he didn't know Ronda Rousey.
The allegations under investigation by U.S. and Swiss authorities cover bribery, fraud and money laundering.
The news comes as Beijing enters the final leg of its bid to host the 2022 Winter Olympics.
ESPN's signature award show takes place Wednesday night.
Arsène Wenger has discussed Arsenal’s plans for the remainder of the transfer window.
Dez Bryant and the Dallas Cowboys avoided a hold out, agreeing to a new five-year contract for the wide receiver.
Floyd Mayweather is close to picking his next opponent for what could be the last fight of his boxing career.
England will take a 1-0 lead over Australia into the second Ashes Test.
Fresh reports suggest that plans have already been made should David de Gea stay at Manchester United for next season.
The first female cover star for “FIFA 16” has been revealed to be Australian Stephanie Catley.
NBA commissioner Adam Silver says some NBA teams aren't making a profit, increasing the likelihood of a lockout in 2017.
Jonathan Papelbon's trade request could be granted by the Phillies soon.
Defenseman Johnny Oduya will be one of the players leaving the champion squad, as confirmed by his agent.
OKC sent Perry Jones III to Boston to save some money.
Ty Lawson could be waived by the Nuggets after his second DUI arrest in six months.
ESPN's annual award show brings the top sports stars in the world together.
The point guard signed a two-year contract.
Mexico and Trinidad and Tobago will battle it out for top spot in Group C at the Gold Cup on Wednesday.
New England Patriots quarterback Tom Brady might take the NFL to federal court if his Deflategate suspension isn't reduced to zero games.
The American is a 9/2 favorite at the 144th British Open.
ESPN will honor Caitlyn Jenner at the 2015 ESPYs by giving her the Arthur Ashe Courage Award.
The Montreal Canadiens have signed forward Michael Bournival to a one-year deal.
Demaryius Thomas and the Denver Broncos are reportedly still in limbo about a long-term contract extension.
Short-term deals for prospects Lindberg and Etem in New York.
Mike Trout led the American League over the National League in the 2015 MLB All-Star Game, earning MVP honors.
The applause at Tuesday's All-Star Game for "Charlie Hustle" lasted for approximately 90 seconds.
The Ducks have acquired right winger Chris Stewart.
After confirming the arrival of Asmir Begovic, Chelsea could be set to reenter the transfer market.
The Maple Leafs acquired forward Taylor Beck from the Predators in exchange for forward Jamie Devane.
The 26-year-old point guard sees Charlotte as an excellent fit for his career.