NEW YORK — A lawyer for Alex Rodriguez declined Major League Baseball’s challenge to make public the drug evidence that led to the 211-game suspension of the Yankees star.

MLB executive vice president Rob Manfred wrote to lawyer Joseph Tacopina on Monday, urging him to waive his client’s confidentiality under baseball’s Joint Drug Agreement so the documents could be released. Tacopina had said he wanted to discuss evidence publicly but was constrained by the provision.

“We will agree to waive those provisions as they apply to both Rodriguez and the office of commissioner of baseball with respect to Rodriguez’s entire history under the program, including, but not limited to, his testing history, test results, violations of the program, and all information and evidence relating to Rodriguez’s treatment by Anthony Bosch, Anthony Galea and Victor Conte,” Manfred wrote in the letter, which was released by MLB.

Bosch was head of the Biogenesis of America anti-aging clinic accused of distributing banned performance-enhancing drugs. Galea pleaded guilty two years ago to a federal charge of bringing unapproved drugs into the United States from Canada. Conte was head of the Bay Area Laboratory Co-Operative, the target of a federal investigation that led to criminal charges against Barry Bonds, Marion Jones and others.

Manfred proposed that both sides disclose information and documents relating to:

• All drug tests that were conducted on Rodriguez under the program and their results;

• All prior violations of the program committed by Rodriguez, and;

• All documents relating to the issue of whether Rodriguez obstructed the office of the commissioner’s investigation.

Tacopina, a lawyer with one of the four firms representing Rodriguez, said the players’ association would have to agree to waive confidentiality.

“The letter was nothing more than a cheap publicity stunt,” Tacopina said in a statement. “The letter that was addressed to my law office with the words ‘Via Hand Delivery’ on top was in fact never delivered to my office but was instead given to the ‘Today’ show, which in and of itself is yet another violation of the confidentiality clause of the JDA. They know full well that they have to address the letter to the MLBPA and such a waiver would require the MLBPA to be party of the agreement and signatures. It’s nothing but a theatrical trap hoping I would sign knowing that I couldn’t and in fact would have me breaching the JDA agreement if I did.”

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, who in June agreed to cooperate with MLB’s investigation.

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 RBI in last year’s playoffs, and Tacopina claims an Oct. 11 MRI at New York-Presbyterian Hospital 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.

Rodriguez said Sunday he asked the union to file a grievance over his medical treatment. That likely will not be part of the drug appeal.