A seven-word tweet in support of Hong Kong’s antigovernment protests by Daryl Morey, general manager of the Houston Rockets, triggered a furor in both China and the United States. The ensuing controversy revealed the unspoken rules of doing business with Beijing. Guest: Jim Yardley, the Europe editor of The New York Times and author of “Brave Dragons: A Chinese Basketball Team, an American Coach, and Two Cultures Clashing.” For more information on today’s episode, visit nytimes.com/thedaily. Background coverage: An exhibition game between the Los Angeles Lakers and the Brooklyn Nets in Shanghai this week was nearly canceled because of China’s dispute with the league. At the game, even longtime fans said they would choose patriotism over the N.B.A.President Trump declined to criticize China’s handling of the controversy, instead opting to publicly condemn two basketball coaches who have spoken out against him in the past.