Osaka retires at Cincinnati with knee injury

(Reuters) - World number one Naomi Osaka retired from the Cincinnati Masters with an apparent knee injury on Friday, less than two weeks before the start of her U.S. Open title defence. Osaka was ... ( read original story ...)

Barty reaches semi-finals, Osaka injured

With one more win, she can move into the top spot for the U.S. Open, taking it back from Naomi Osaka. Osaka had much bigger concerns after dropping out of her semi-final match because of a knee injury ... ( read original story ...)