The baseball star's attorney steps up to the plate for him.

Alex Rodriguez's lawyer is pleading a case to the New York Post that his all-star client didn't spy on his estranged wife Cynthia.

"Neither Cynthia nor Alex have any surveillance on each other," Alan Kluger said. "I would seriously doubt that either one of these parties would do that to each other ... they're going through difficult times, but that's just not who they are."

Kluger added that Cynthia's attorneys' "surveillance" disclosure request is "a standard item in a request for production in matrimonial cases."

On Tuesday, ET obtained court docs filed by Cynthia's legal team asking A-Rod to hand over any reports that he has "received from a detective, investigator or any other person based upon surveillance" of Cynthia.