LeBron James joined Fenway Sports Group as a partner, giving him an ownership stake in its subsidiaries that includes the Boston Red Sox, Liverpool FC, and NESN.
James previously had a 2% ownership stake in Liverpool.
The Red Sox are currently valued at $3 billion.
FSG also received a $750 million investment from RedBird Capital Partners.
James has spoken about his desire to own an NBA team after he retires.