NEW YORK – The Latest on the U.S. Open tennis tournament (all times local):
Top-seeded Novak Djokovic stayed perfect for 2020 and advanced to the fourth round of the U.S. Open with a straight-sets win.
He beat Germany's Jan-Lennard Struff 6-3, 6-3, 6-1 in an hour and 43 minutes, holding serve throughout. Struff managed only four break points and couldn't convert.
Djokovic has won his last 29 matches and is 26-0 this season, making him a prohibitive favorite to get his fourth U.S. Open title — he won it in 2011, 2015 and 2018. He'll play 20th-seeded Pablo Carreno Busta.
Alexander Zverev reached the fourth round at the U.S. Open for the second year in a row, beating Adrian Mannarino in a match that was delayed because of health concerns.