Two world title bouts to take place on Mayweather-McGregor undercard

Mayweather Promotions have announced two world title fights will take place on the  undercard of the Floyd Mayweather-Conor McGregor fight on Saturday August 26 at the T-Mobile Arena in Las Vegas.

Gervonta "Tank" Davis (18-0, 17 KOs), who at 22 is the youngest American world champion in boxing, will make the second defence of his IBF super featherweight title against undefeated challenger Francisco Fonseca (19-0-1, 13 KOs) of Costa Rica.

Davis dethroned Jose Pedraza by seventh round TKO in January and defended the belt by beating Britain's Liam Walsh inside three rounds last May in London.

Also, WBA light heavyweight champion Nathan Cleverly (30-3, 16 KOs) will defend his title against former WBC super middleweight champion Badou Jack (20-1-3, 12 KOs), who is stepping up in weight in a bid to become a two-division world champion.

Welshman Cleverly  last fought in October, when he stopped Juergen Braehmer to win his second world title.

Sweden native Jack is coming off a majority draw against IBF super middleweight champion James DeGale in a 168 pound  world title unification fight last January.