"No, it has not happened," Rodriguez said on Saturday, adding, "Maybe they sent it to my lawyers. But I'm not really going to talk about that."
Yankees general manager Brian Cashman said that the team is not commenting on the situation.
Rodriguez went 0-for-4 with three strikeouts in the Yankees' 4-3, 10-inning win over the Tigers on Friday.
The Yankees have been expected to hand down some measure of discipline to Rodriguez following their public clash in late July over his strained left quadriceps.
Without the Yankees' knowledge or approval, Rodriguez enlisted the help of Dr. Michael Gross of Hackensack University Medical Center to examine an MRI.
Gross then appeared on WFAN, contesting the opinion of Yankees team physician Christopher Ahmad by stating that he saw no reason Rodriguez could not be playing. Gross acknowledged that he had never treated, nor met, Rodriguez in person.
Article XIII, Paragraph D of the Collective Bargaining Agreement states that players must "inform the Club in writing of his decision to seek a second medical opinion" prior to undergoing another evaluation.
ESPN New York also reported that the Yankees sent an official letter of discipline to catcher Francisco Cervelli for failing to report to work prior to the announcement of his 50-game suspension.
Bryan Hoch is a reporter for MLB.com. Follow him on Twitter @bryanhoch and read his MLBlog, Bombers Beat. Josh Vitale is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.