On Tuesday, Ma Guoli resigned his position as an adviser to the Chinese Basketball Association. Michael Ma has a long background with the NBA, previously working for the league for 13 years in various capacities. He had been the CEO of Endeavor China. The relationship between the league and China was disrupted after Morey, the Houston Rockets general manager, tweeted in support of anti-government protesters in Hong Kong on Oct. 4. Morey later deleted his tweet, an image that read “Fight For Freedom. Stand With Hong Kong,” and clarified the intent in two subsequent tweets.