Yahoo Asks For A Lawsuit (In Sports, Not Business)

From the league front page: "The Yahoo! Sports Fantasy Baseball season ended with the games played on Sunday, September 28th. Statistics from the Tigers vs. White Sox game on Monday, September 29th, will NOT count in fantasy scoring."

Now, I'm not in any H2H championship, but if I were... well, um, today's game between the White Sox and Tigers is in the regular season. Why is it unique among all games played in MLB this year to not count?