Elvis Grant

KSI is eating like the Notorious leading up to his rematch with Logan Paul ... hiring Conor McGregor's personal chef to cook his meals leading up to the fight!! The 26-year-old British internet superstar gave an inside look into his insane training program for the Nov. 9 bout ... revealing he…

Floyd Mayweather won't be in 'Creed,' but his swag will be -- Sylvester Stallone tapped Floyd's favorite boxing glove company to be the official mitt of the movie. Elvis Grant, CEO of of Grant Worldwide tells us Sly called him personally to request his company outfit all the fighters in the…