Naomi Osaka Using US Open As Platform To Spread Awareness About Racial Injustice

Naomi Osaka said she is increasingly comfortable in her role as athlete activist.

US Open: Naomi Osaka Made To Work In Win Over Misaki Doi

Naomi Osaka registered a 6-2, 5-7, 6-2 win over Japanese compatriot Misaki Doi at Arthur Ashe Stadium.

Venus Williams Beats Misaki Doi to Win Taiwan Open

Venus Williams, who didn't drop a single set in the Taiwan Open, saved six of nine break points in what was her first meeting against the second-seeded Misaki Doi of Japan.

US Open: Petra Kvitova battles past Doi while Ana Ivanovic cruises

Czech seventh seed Kvitova fought off Japan's tenacious 92nd-ranked Misaki Doi 6-2, 3-6, 6-1 while Ivanovic dispatched Georgia's Anna Tatishvili 6-2, 6-0.

Maria Sharapova scores first bagel double since 1985

Dominant world number two Maria Sharapova became the first person to score two double bagel Grand Slam wins in a row since 1985 on Wednesday, but said statistics were not important.

Andrea Petkovic topples top seed; Kimiko Date-Krumm packs off 2nd seed

Comeback German girl Andrea Petkovic toppled top seed Nina Bratchikova of Russia while Japanese veteran Kimiko Date-Krumm shocked compatriot and second seed Misaki Doi to storm into the semifinals of the WTA Indian Open, on Friday.

China's Zheng Jie into Aegon Classic semifinals

Zheng Jie of China overcame the rain and an intensive schedule to beat Roberta Vinci 6-3, 5-7, 6-4 and reach the semifinals of the Aegon Classic on Saturday.

Stosur has it easy enroute to Japan quarters

Top-seeded Samantha Stosur easily reached the Japan Open quarterfinals with a 6-2, 6-4 victory over Misaki Doi on Thursday.

Japan lead 2-0 over Argentina in Fed Cup

Up-and-coming Misaki Doi gave Japan a perfect start as they led 2-0 against Argentina on the first day of the Fed Cup World Group II play-off on Saturday.

Doi shocks Mattek-Sands on Wimbledon debut

Japanese qualifier Misaki Doi made a dream debut at Wimbledon as the world number 133 clinched a surprise 6-4, 5-7, 7-5 win over 30th seed Bethanie Mattek-Sands in the first round on Wednesday.