In a surprise move Sirius XM (NASDAQ:SIRI) announced today, for the first time ever, they have added Major League Baseball to the Internet radio side of their business.  The move bolsters the Internet business for Sirius XM, and puts more of a content gap between Sirius XM and their mostly music Internet radio brethren.

At the time of this article, the company had not issued a press release, but rather sent a simple email to subscribers, and changed the landing page on their website to reflect the news.

The addition of MLB to the Internet business has been a long time coming, and means that the company is taking seriously from a content standpoint.  Pandora doesn't have this stuff, nor does Spotify.  If you want baseball in a mobile environment, Sirius XM is now your top choice.