The commissioner's office released a statement saying Rodriguez was "cooperative" in an interview with officials from baseball's Department of Investigations and Labor Relations Department. No further details were revealed, and the statement said MLB would have no additional comment at this time.
MLB sought to interview the New York Yankees slugger about his admission that he used performance-enhancing drugs from 2001-03 with Texas.
Rodriguez had two lawyers, Jay Reisinger and James E. Sharp, with him at the meeting in Tampa, Fla. Also present were union general counsel Michael Weiner, MLB vice president of investigations Dan Mullin, MLB executive vice president for labor relations Rob Manfred, and senior vice president and general counsel for labor Dan Halem, according to a person familiar with the meeting.
The person spoke on condition of anonymity because he wasn't authorized to discuss details.
Earlier in the day, Rodriguez hit a pair of RBI doubles during a spring training game against the Cincinnati Reds in Sarasota, Fla., then left the ballpark without saying whether he was headed to the meeting with MLB.
MLB wanted to speak with Rodriguez about security issues involving a trainer from the Dominican Republic and the cousin the three-time MVP said injected him with a banned substance called "boli."
After being lifted from Sunday's game for a pinch runner in the fifth inning, Rodriguez spoke with reporters but declined to discuss when or if the meeting would take place. Then he got into a car with teammates Robinson Cano and Mark Teixeira and left the ballpark.
Rodriguez did say he planned to be in Jupiter by Sunday night to join the Dominican Republic team for World Baseball Classic preparations. He said the squad had a meeting scheduled for 9 a.m. Monday.
"I'm not sure what I'm doing. But I will be in Jupiter tonight," Rodriguez said. "Opportunity of a lifetime playing in the WBC. I'm excited about that."
Before the Yankees' game against Cincinnati, New York manager Joe Girardi declined to talk about Rodriguez's meeting with Major League Baseball, saying it was up to Rodriguez or MLB to discuss specifics.
"I'm only talking about baseball," Rodriguez said. "I'm just excited that I have a game every day. That's where I belong. It's fun to be back out there."
A-Rod worked out at Steinbrenner Field for about 90 minutes before boarding the team bus Sunday, which left Tampa at 9 a.m. He didn't talk to reporters after taking batting practice before New York's 13-11 loss to the Reds. He went 2-for-3 with two RBIs.
"I get to see my family tonight," Rodriguez said. "I'm excited about that. My two beautiful girls."
Rodriguez, after receiving a mixed ovation that had more boos than cheers, hit a run-scoring double in the first off Reds starter Aaron Harang. Rodriguez fouled out in the third and had another RBI double against Arthur Rhodes in the fifth.