50 Most Influential: Alex Rodriguez / Fred Horowitz
New York Yankees
CHANGE FROM 2012: NEWCOMERSRodriguez, MLB’s highest-paid player, is involved in a nasty legal fight with the league over charges of using performance-enhancing drugs. Horowitz will determine the outcome. It’s a critical test of the power of an individual athlete and his union against a sports property that will echo across all pro sports and define the careers of both A-Rod and MLB Commissioner Bud Selig. It’s also a case that MLB’s business partners are scrutinizing closely.