Tennis: Naomi Osaka withdraws from Italian Open, Kei Nishikori crashes out

World No. 1 Naomi Osaka withdrew from the Italian Open ahead of her quarterfinal match on Friday before her compatriot Kei Nishikori was knocked out in straight sets.Both of Japan's top players had won two games on Thursday, but Osaka said she was unable to move her right thumb when she woke up. Nishikori, the world's sixth-ranked men's player, made it to his quarterfinal match against Diego Schwartzman and fought back from 5-0 in the first set before falling 6-4, 6-2.After letting Nishikori back into the first set, the 24th-ranked player took the air out of his Japanese opponent in the sev…READ FULL ARTICLE