Japan's Kei Nishikori said Friday he has tested positive again for the novel coronavirus after revealing his initial infection less than a week ago, making it very unlikely he will play at the U.S. Open starting Aug. 31."Just a little update, I just took another COVID test and am still positive. I have very minimal symptoms and am staying in full isolation" in Florida, Nishikori posted on his official app.Following the initial positive test, the 30-year-old pulled out of the Western and Southern Open, a U.S. Open warm-up event moved to New York from its normal venue in Cincinnati."(My) next…READ FULL ARTICLE
