Lawyers representing the PGA Tour are seeking to add Yasir Osman Al Rumayyan, president of Saudi Arabia's public investment fund and fund, as a defendant in the tour's counterclaim against LIV Golf.In a leave application filed in the U.S. District Court for the District of Northern California on Tuesday, a PGA Tour attorney said documents recently drawn up from LIV Golf … [Read more...] about PGA Tour seeks to add Saudi Arabia’s Public Investment Fund to LIV lawsuit