Mayweather unfazed by `dirty` McGregor
(WorldNews Sport)

LAS VEGAS - Floyd Mayweather has accused Conor McGregor of `fighting dirty` in training but is confident of a clean battle when the two men meet in their August 26 superfight. Mayweather told reporters on a conference call on Thursday he believed mixed martial arts star McGregor had used illegal tactics in sparring sessions. The undefeated former welterweight king, who is coming out of retirement to fight McGregor in Las Vegas, said he had...