Comcast SportsNet Chicago (sometimes abbreviated as CSN Chicago) is an American regional sports network that is owned by the NBC Sports Group unit of NBCUniversal (which owns 20%, and is itself owned by Comcast, the primary cable provider in the Chicago market), the family of Chicago Cubs owner J. Joseph Ricketts (who own 20%), Chicago Bulls and White Sox owner Jerry Reinsdorf (who owns a 40% majority interest), and Chicago Blackhawks owner Rocky Wirtz (who owns 20%).