Fifth-seeded Nick Kyrgios withdrew forward of his quarterfinal match in Tokyo on Friday with a left knee harm.
No. 3 seed Taylor Fritz superior to the Japan Open Tennis Championships in a walkover.
Kyrgios, 27, additionally pulled out of the doubles draw, the place he and fellow Australian Thanasi Kokkinakis had reached the semifinals.
Kyrgios is a seven-time winner on the ATP Tour. He reached the finals at Wimbledon and the quarterfinals on the U.S. Open earlier this yr.
–Field Level Media