SI Now: Floyd Mayweather v. 50 Cent

On Monday's SI Now, Sports Illustrated senior writer Chris Mannix discusses the beef between 50 Cent and Floyd Mayweather and how it will help promote

On Monday's SI Now, Sports Illustrated senior writer Chris Mannix discusses the beef between 50 Cent and Floyd Mayweather and how it will help promote Mayweather's match against Maidana.