Toronto Blue Jays' Melky Cabrera stretches before a baseball game against the San Francisco Giants on Wednesday, June 5, 2013 in San Francisco. r League Baseball has begun interviewing players linked to a Miami anti-aging clinic that allegedly sold performance-enhancing drugs and became the focus of the sport's investigation. Cabrera, Alex Rodriguez, Ryan Braun, Nelson Cruz, and Bartolo Colon are among more than a dozen players whose names have been tied to the now-closed clinic, Biogenesis of America. (AP Photo/Marcio Jose Sanchez)NEW YORK (AP) — Major League Baseball's lawyers issued subpoenas to Federal Categorical, AT&T Mobility and T-Cell USA in an try to gain data for its investigation of players suspected of the usage of efficiency-bettering medicine.