Tennis: With no Nishikori, Asia brings few threats in men's US Open draw

August 29, 2020 3:53 AMMELBOURNE (REUTERS) - The chances of Asia producing a US Open men's champion have plummeted with the withdrawal of former finalist Kei Nishikori, and even with a weak field at Flushing Meadows few of the region's best can even hope to reach the second week.