The union didn’t immediately respond to a request for comment.
A three-time AL MVP, Rodriguez is playing pending his appeal, which is not expected to be decided by arbitrator Fredric Horowitz until at least November.
In addition to his own lawyers, Rodriguez paid Florida-based attorney Susy Ribero-Ayala in February to represent Bosch.
“A retainer of $25,000 was paid (via wire transfer) by a representative of Alex Rodriguez. Ms. Ribero-Ayala accepted this payment on behalf of Anthony Bosch as payment for his legal representation,” Ribero-Ayala spokeswoman Joyce Fitzpatrick said in a statement Monday. “In April 2013, Ms. Ribero-Ayala received an unsolicited and unwarranted wire transfer of $50,000 from A-Rod Corp. The funds were immediately returned. Mr. Rodriguez does not have any involvement in Mr. Bosch’s legal representation.”
In June, Bosch agreed to cooperate with MLB’s investigation.
The payments were first reported Sunday by ESPN. Rodriguez declined comment, citing the JDA’s confidentiality provision.
“At some point, I think everybody will talk,” he said early Monday. “I think everybody has to have a little patience.”
Rodriguez is among 14 players disciplined by MLB this summer following its Biogenesis investigation. Former NL MVP Ryan Braun accepted a 65-game suspension and 12 players agreed to 50-game penalties.
The 38-year-old Rodriguez made his big league season debut Aug. 5, the same day his suspension was announced. He had been sidelined since left hip surgery in January and his return was delayed by a leg injury in July.
Rodriguez batted .120 (3 for 25) with no RBIs in last year’s playoffs, and Tacopina claims an Oct. 11 MRI revealed the left hip injury. The Yankees maintain Rodriguez complained then only of a problem with his right hip, which was operated on in March 2009.
“They put him out there in that condition when he shouldn’t have even been walking, much less playing baseball,” Tacopina said Monday during an interview with The Associated Press.