Bosch is to appear Sunday on the "60 Minutes'' television program along with MLB chief operating officer Rob Manfred. In an interview with "CBS Evening News" on Saturday, Scott Pelley of "60 Minutes'' said Bosch told him he administered six banned substances to Rodriguez, including "testosterone, insulin growth factor 1, human growth hormone and some different forms of peptides."
Bosch also said during the interview that "Alex is scared of needles so at times he would ask me to inject [him personally]."
Rodriguez's spokesman issued a statement before the decision was officially announced, calling the suspension "inconsistent" and based on "false and wholly unreliable testimony."
"The number of games sadly comes as no surprise, as the deck has been stacked against me from day one," Rodriguez said in the statement. "This is one man's decision, that was not put before a fair and impartial jury, does not involve me having failed a single drug test, is at odds with the facts and is inconsistent with the terms of the Joint Drug Agreement and the Basic Agreement, and relies on testimony and documents that would never have been allowed in any court in the United States because they are false and wholly unreliable.
"This injustice is MLB's first step toward abolishing guaranteed contracts in the 2016 bargaining round, instituting lifetime bans for single violations of drug policy, and further insulating its corrupt investigative program from any variety defense by accused players, or any variety of objective review."
MLB defended the length of the original suspension in a news release.
"For more than five decades, the arbitration process under the Basic Agreement has been a fair and effective mechanism for resolving disputes and protecting player rights," MLB said in the statement. "While we believe the original 211-game suspension was appropriate, we respect the decision rendered by the Panel and will focus on our continuing efforts on eliminating performance-enhancing substances from our game."
In a separate statement, the Yankees said they "respect Major League Baseball's Joint Drug Prevention and Treatment Program, the arbitration process, as well as the decision released today by the arbitration panel."
A spokeswoman for Bosch said he thought the suspension was deserved.
"Tony Bosch doesn't take joy in seeing Alex Rodriguez suspended from baseball, but he believes the arbitrator's decision was appropriate," Joyce Fitzpatrick said in a statement. "He is glad to have the arbitration behind him and believes he can play a valuable role in the future by educating athletes about the dangers of performance-enhancing drugs."
Rodriguez reiterated his claim that he has not taken any PEDs in his time with the Yankees. The three-time American League MVP was the biggest name linked last year to Biogenesis.