Naming two "Major League Baseball sources," the newspaper says MLB's Department of Investigations is hot on the trail of the leaks.
The Associated Press got its hands on the Pirates' books, while the Rays, Marlins, Mariners, Angels and Rangers had their financial information given to Deadspin.com.
Deadpsin writer Tommy Craggs would not say if he had more financial reports -- "can't comment on that, unfortunately, at least not while my source is running from black helicopters," Craggs told the paper in an e-mail.
The documents showed some teams were pocketing revenue-sharing money from some of the larger teams.
"It was beneficial, some of the information," one source told the paper. "I think a lot of people were glad to see that the receipts were higher" but not happy to see some "transfer of equity was not going toward players and player development."
-- C. Trent RosecransFor more baseball news, rumors and analysis, follow @cbssportsmlb on Twitter or subscribe to the RSS feed .