Sports Serena Williams moves into third round at U.S. Open; matchup with Sloane Stephens is next September 3, 2020Wayne Coffey, Special for USA TODAYComments Off on Serena Williams moves into third round at U.S. Open; matchup with Sloane Stephens is next Serena Williams struggled with her service game in the second set, but beat Margarita Gasparyan 6-2, 6-4.