Detroit Tigers shortstop Jhonny Peralta is named in the records of Tony Bosch, the director of the Biogenesis wellness clinic in Coral Gables, Fla., that is the target of an MLB investigation into performance-enhancing drugs, according to sources familiar with the records.

Peralta brings to 12 the number of baseball players connected to Bosch's notes, and adds to one of the two threads that have emerged in the Biogenesis case: Peralta is the fifth client of the ACES agency of Seth and Sam Levinson and with an association with Juan Nunez, a former runner for the agency, to be connected to clinic records.

Previous ACES clients named in reports are Rangers outfielder Nelson Cruz, Nationals pitcher Gio Gonzalez, Mariners catcher Jesus Montero and Blue Jays outfielder Melky Cabrera. Nunez was banned by baseball after he was tied to Cabrera's attempt to stage a web site selling a fake PED.