• The 2018 U.S. Open began with a shock on Monday, with the loss of top-ranked Simona Halep.
• Andy Murray won his first match at Grand Slam event in more than a year, but it wasn’t easy.
• John Isner, Stan Wawrinka, Jack Sock and Milos Raonic were among the winners on the men’s side.
• Refresh here for live results and analysis from the first day of the 2018 U.S. Open
• Live scores and schedule: Men | Women
