Boston Celtics star Enes Kanter published a video Wednesday evening condemning China and dictator Xi Jinping by name for the decades-long brutal repression of Tibet, potentially jeopardizing the National Basketball Association’s (NBA) lucrative business ties with the regime.

Kanter has a long history of human rights advocacy that began with criticism of Islamist President Recep Tayyip Erdogan of his native Turkey, considered the world’s worst jailer of journalists second only to Xi. Following an alleged coup attempt in 2016, Erdogan shut down dozens of media outlets and arrested thousands of people suspected of opposing his regime. Erdogan’s regime especially persecutes members of Hizmet, an Islamic movement led by U.S.-based cleric Fethullah Gülen, of which Kanter is a member.

Like Turkey before it, China reportedly cut a broadcast of Wednesday’s Celtics game against the New York Knicks abruptly and at least one major Celtics fan page on Weibo, China’s government-controlled social media outlet, announced it would no longer follow the team in response to Kanter’s statement.