NEW YORK :The U.S. Tennis Association has launched a dedicated credential program for social media creators at this year's U.S. Open as part of a drive to court younger audiences, the USTA's social media lead said. Roughly 50 creators spanning food and beverage, lifestyle, entertainment, fashion and family niches have been accredited and are producing content at the tournament, Jonathan Zipper, who oversees social media at the USTA, told Reuters. "We have a wide array of creators generating