Martina Hingis to come out of retirement to play doubles at Southern California Open

Japan Open: Katie Boulter beats Viktorija Golubic in straight sets to advance to quarter-finals in Osaka

Tennis scores: Boulter, Fearnley and Wawrinka in action on Wednesday

Japan Open: Katie Boulter puts rain delays behind her as Brit progresses to second round in Osaka

Black History Month Firsts: How Althea Gibson paved the way for black players in tennis!

Lyon Open: Corentin Moutet gets cramp then a time violation for taking too long to serve

Katie Boulter shows umpire weather app on court before play suspended