Japan's former world No. 1 Naomi Osaka was eliminated in the first round of the U.S. Open for the first time Tuesday, with the 2018 and 2020 women's singles champion falling 7-6(5), 6-3 to Danielle Collins of the United States.Osaka, currently ranked 44th and unseeded for the year's final grand slam, had won all three previous meetings with the 19th-ranked Collins but fell short this time at Billie Jean King National Tennis Center.The 24-year-old Osaka was returning from an Achilles injury and played her first match since the French Open in May on Aug. 2, but then hurt her lower back and re…READ FULL ARTICLE