The two have gone back and forth in the media over the last few months and Connor McGregor is the latest to call out Mayweather and claim he can knock him out.
Boxing great Muhammad Ali has passed away at the age of 74. He died at a Phoenix hospital from respiratory issues related to Parkinson's disease, which Ali contracted in 1984.
On Wednesday Nike separated themselves from boxer Manny Pacquiao after he made degrading comments toward homosexuals. Pacquiao apologized by Facebook & Twitter.