Anthony Bosch injected Alex Rodriguez with performance-enhancing drugs, according to sources.

The Yankees third baseman would contact Bosch late at night to come to his waterfront mansion on Biscayne Bay.

Procedures were different for the other athletes who were customers of Bosch's Biogenesis of America clinic in Coral Gables, which Major League Baseball considers the center of a widespread doping operation in South Florida, according to sources.

However, for Rodrigez, the service was always personal: "Only Tony handled A-Rod," one source said.