In this Nov. 6, 2009, photo, New York Yankees' Alex Rodriguez, left, and hip-hip mogul Jay-Z stand during an NBA basketball game between the New York Knicks and the Cleveland Cavaliers in New York. Jay-Z is teaming up with his favorite baseball squad on co-branded clothes that will be sold exclusively at Yankee Stadium beginning next week. All the items, from baseball caps to T-shirts and hooded sweat shirts, will feature Yankees and Jay-Z logos. (AP Photo/Kathy Kmonicek)

Photo by: Kathy Kmonicek

In this Nov. 6, 2009, photo, New York Yankees' Alex Rodriguez, left, and hip-hip mogul Jay-Z stand during an NBA basketball game between the New York Knicks and the Cleveland Cavaliers in New York. Jay-Z is teaming up with his favorite baseball squad on co-branded clothes that will be sold exclusively at Yankee Stadium beginning next week. All the items, from baseball caps to T-shirts and hooded sweat shirts, will feature Yankees and Jay-Z logos. (AP Photo/Kathy Kmonicek)