Reisinger met with Rodriguez in Tampa, Fla., on Saturday, a person familiar with the meeting said, speaking on condition of anonymity because no announcement was made by the New York Yankees third baseman.
Shortly after Sport Illustrated's report on Feb. 7 that he tested positive for steroids during baseball's anonymous survey, Rodriguez hired James E. Sharp, a lawyer whom Reisinger brought in to help him represent Sosa before Congress. Sharp also represented then-President George W. Bush in front of a federal prosecutor.
Thomas Farrell, who worked with Reisinger and Sharp in the cases of Sosa and Pettitte, could be added to the legal team at some point.
Reisinger is a veteran baseball attorney who has spent the last few weeks preparing salary arbitration cases for players. He argued the winning case of Washington pitcher Shawn Hill.
Rodriguez's decision to hire Reisinger was reported earlier by The New York Times on its Web site.