Core Viewpoint - He Youjun has successfully completed the bidding process to become a co-owner of the Boston Celtics, the team with the most championships in NBA history, marking a significant event in the intersection of Chinese investment and American professional sports [1][2]. Group 1: Ownership and Investment - The Celtics officially announced the acquisition of majority ownership by an investment group led by William Chisholm, which includes He Youjun and other notable members [1]. - The Celtics have a rich history, being established in 1946 and holding 18 NBA championships, with a strong operational performance under the leadership of Wyc Grousbeck [5]. - The valuation of the Celtics was reported at $6.1 billion during the acquisition, setting a record for the highest price in North American sports history [5]. Group 2: Significance of the Investment - He Youjun's entry into the NBA management signifies a deepening collaboration between Chinese investors and the American professional sports system, providing a new opportunity for China to gain more influence in international sports [2]. - The increasing presence of Chinese figures in the NBA, such as He Youjun and emerging players like Yang Hanshen, reflects a growing representation and impact of China in the league [2]. Group 3: Personal Background of He Youjun - He Youjun, the son of Macau's "Gambling King" Stanley Ho, is an MIT graduate and a long-time fan of the Celtics, indicating a personal connection to the team [5]. - He Youjun has diverse business interests, including esports and hospitality, with several active companies under his name [5].

Group 1 - The Boston Celtics have officially changed ownership, with an investment group led by William C. Cheatham acquiring the majority stake after unanimous approval from the NBA Board [2][3] - The investment group includes notable figures such as Wyc Grousbeck, Aditya Mittal, and He Youjun, who expressed a strong commitment to enhancing the team's performance and commercial value, particularly in the Chinese market [2][5] - He Youjun's entry into the NBA management is seen as a significant milestone for Chinese investors in American professional sports, following the footsteps of other prominent Chinese figures in the NBA [5][8] Group 2 - The Celtics were valued at $6.1 billion during this acquisition, setting a record for the highest price in North American sports history [10] - The Celtics, established in 1946, are the most successful team in NBA history with 18 championships and over 40 Hall of Fame members, indicating their substantial commercial potential [8][10] - Cheatham, a lifelong Celtics fan, will serve as the chairman of the team's board, while Grousbeck will continue as CEO until 2028, ensuring continuity in leadership [10]