The owners of two rooftop clubs near Wrigley Field and two former professional scouts hope to break Major League Baseball’s 96-year legal winning streak.In separate petitions filed with the U.S. Supreme Court, the rooftops and the scouts have pitched the idea of overturning a 1922 ruling that makes baseball the only professional sport exempt from antitrust law.In Federal Baseball Club of Baltimore v. National League of Professional Baseball Clubs, 259 U.S. 200 (1922), the Supreme Court held the Sherman Act does not …