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In this April 30, 2008 file photo, Mark Cuban, owner of the Dallas Mavericks NBA basketball team, watches the Chicago Cubs play the Milwaukee Brewers in the first inning of a baseball game in Chicago. Since buying the Dallas Mavericks eight years ago, Mark Cuban has been called a lot of unpleasant things: NBA nuisance, meddling owner, even a bad dancer. Now Cuban is facing the most serious allegation yet - insider trading.
