An ESPN Deportes producer received confirmation of Sucart's identity from the man's wife, Carmen, over the telephone on Wednesday night.
"I told you my husband has nothing to say," Carmen Sucart told the network. "What A-Rod said at the press conference is what happened and that is all. And if you want to talk to my husband, why don't you talk to his lawyer?"
The network reported that Yuri Sucart served as Rodriguez's "best friend, confidant and personal protector," and uncovered more detail from a "friend once close to Rodriguez."
"Yuri was a mule, not a guy who would initiate anything," the friend told ESPN. "He did what Alex told him to. He was only looking out for Alex. He is not a guy who would take the initiative to go out and buy drugs. Alex said during the press conference that his cousin just did what was asked -- that is perfect for Yuri's MO. He is a person who would be with him forever, a loyal guy without a bad bone in his body."
Doug Miller is reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.