Jay Z has built up quite the roster under Roc Nation Sports management, including Kevin Durant, Skylar Diggins and Victor Cruz to name a few. Unfortunately for the business mogul, he's just lost a significant number of boxers who were brought in through Gary Shaw Productions, including undefeated heavyweight contender Bryant Jennings.

"We gave it a try and unfortunately it did not work out for both parties," Shaw told ESPN.com "It is an amicable separation. Roc Nation was very professional at our meeting and they allowed me to keep all of my fighters and my company, and terminate any agreements we had together. They gave me back my company."

Other boxers Hov lost under the split include Darleys Perez, Tureano Johnson, Jonathan Maicelo, Kenneth Sims Jr., Francisco Santana, Roman Morales and Daniel Geale.

Source: AllHipHop