U.S. Tennis Association’s New Executive Waits Patiently for American Boys to Fill a Void. Tennis, Macur, Juliet, United States Tennis Assn, Youth, Blackman, Martin (1970- ), Paul, Tommy (1997- ), Opelka, Reilly (1997- ), Tiafoe, Frances (1998- ), Donaldson, Jared (1996- ), United States Open (Tennis)