At Utsubo Tennis Center
Surface: Hardcourt outdoor
TOKYO (AP) _ Results Friday from Olympic Tournament Women Singles at Utsubo Tennis Center (seedings in parentheses):
Karen Khachanov (12), ROC, def. Pablo Carreno Busta (6), Spain, 6-3, 6-3.
Alexander Zverev (4), Germany, def. Novak Djokovic (1), Serbia, 1-6, 6-3, 6-1.
Michael Venus and Marcus Daniell, New Zealand, def. Austin Krajicek and Tennys Sandgren, United States, 7-6 (3), 6-2.
Nikola Mektic and Mate Pavic (1), Croatia, def. Marin Cilic and Ivan Dodig, Croatia, 6-4, 3-6, 10-6.
Anastasia Pavlyuchenkova and Andrey Rublev, ROC, def. Ashleigh Barty and John Peers, Australia, 5-7, 6-4, 13-11.
Elena Vesnina and Aslan Karatsev, ROC, def. Novak Djokovic and Nina Stojanovic, Serbia, 7-6 (4), 7-5.