Entertainment Mogul/Rapper Jay-Z is at it again, expands Roc Nation into professional sports representation:    Via NY Times: When Robinson Cano rejected the offer of a substantial contract extension from the Yankees before spring training,......

The NY Times examines Jay-Z’s influence on re-branding the new Brooklyn Nets, a small investment yielding big results: When the developer Bruce Ratner set out to buy the New Jersey Nets and......