Jay-Z's sports agency Roc Nation signed Diggins in April and gave her a new white Mercedes when she graduated from Notre Dame several weeks ago.

WSJ: Diggins and Shock off to slow start

Jay-Z's sports agency Roc Nation signed Diggins in April and gave her a new white Mercedes when she graduated from Notre Dame a few weeks ago.

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Yahoo Sports, which first reported Jay-Z's plans, said his Roc Nation company has partnered with Creative Artists Agency (CAA) and hopes to compete for players in this June's NBA draft.

WSJ: As Jay-Z sells, Nets losing minor owner, big name

She's not a big fan of Roc -- she prefers her men balanced, with a feminine side.

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Cano leaves Scott Boras, who is considered baseball's premier agent, to join Roc Nation, which is partnering with the sports agency CAA Sports.

WSJ: Jay-Z, Robinson Cano: Jay-Z's Newest Client: Yankees' Robinson Cano