DUBAI, United Arab Emirates, Feb. 20 (UPI) -- World No. 1 Serena Williams and her sister Venus Williams advanced to the semifinals of the Dubai Duty Free Tennis Championships with wins Thursday.
Serena Williams beat fifth-seeded Jelena Jankovic 6-2, 6-2. She won two-thirds of the points on serve and saved four of the five break points Jankovic had.