Floyd Mayweather v Conor McGregor: CEO of Mayweather Promotions wary of UFC champ
Those are the thoughts of the CEO of Mayweather Promotions, Leonard Ellerbe.
Mayweather will fight McGregor in a super fight at the T-Mobile Arena in Las Vegas on August 26.
The bout which will be contested at 154 pounds, could smash all box office records for a fight.
Mayweather, 40, who was unbeaten during his professional career, is coming out of retirement to face UFC champion McGregor.
A victory for the American will take his record to 50 wins.