Serena Williams beats older sister Venus to reach Family Circle Cup final . World No . 22 triumphs in just 54 minutes as she continues title defense . Williams will next play former top-ranked player Davis Cup . Davis Cup champions Czech Republic lose doubles in Kazakhstan .
Serena Williams beats older sister Venus to reach Family Circle Cup final . World No . 1 triumphs in less than an hour as she continues title defense . Williams will next play former top-ranked player Jelena Jankovic . Davis Cup champions Czech Republic lose doubles in Kazakhstan .