American business tycoon and New York Knicks owner James Dolan has been diagnosed with COVID-19, becoming the first US major sports owner to test positive for the virus, the Knicks announced Saturday night.

The 64-year-old Dolan, who also owns the National Hockey League's New York Rangers, is self isolating after experiencing "little to no symptoms". In a tweet, the Knicks said Dolan continues to carry out his duties as the executive chairman of the New York-based sports and entertainment company Madison Square Garden Co. The NBA postponed its regular season after several players, including Utah Jazz center Rudy Gobert, tested positive for the new coronavirus.