The New Jersey Nets have been fined $50,000 for minority partner Jay-Z’s postgame celebration with the Kentucky Wildcats following the school's Final Four clinching win over North Carolina.

Word circulated around the league Friday that an unnamed team -- which sources confirmed to ESPN.com is the Nets -- was fined for violating league rules that prohibit contact with players that still have remaining intercollegiate basketball eligibility.

The NBA's investigation, first reported by CBSSports.com, was triggered by a video showing Jay-Z visiting with various Kentucky players in their locker room at the Prudential Center in Newark, N.J., after the Wildcats' quarterfinal victory over North Carolina.