According to this NeoGAF thread, Electronic Arts is starting to send out checks as part of a settlement agreement related to a class action lawsuit about sports video game monopolies. EA came to an out-of-court settlement with the plaintiffs in the court case Pecover v. Electronic Arts in July 2012. As part of the agreement EA agreed to pay $27 million into a fund that would be used to pay lawyers' fees and class-action claimants in the case. Those payouts were held up by appeals this past summer, but a federal court in California dismissed them, allowing the settlement checks to go out this fall.
Those who filed a verifiable claim by May 15 of this year will receive $20.37 per copy of a Madden NFL, NCAA Football or Arena Football game they bought on GameCube, PlayStation 2, Windows PC or Xbox, and $5.85 per game purchased on PlayStation 3, Wii or Xbox 360. The settlement covers games in those three franchises that were released between Jan. 1, 2005, and June 21, 2012.
You can find a copy of the settlement agreement here.