The 10th seed will next play Alla Kudryavtseva after the Russian defeated American Melanie Oudin 2-6 7-5 7-5.
CNN: Serena maintains Grand Slam record
2.
With both the Williams sisters ruled out through injury, Melanie Oudin opened the tie for the hosts with a 6-3 6-3 win over Alla Kudryavtseva -- who was making her Fed Cup debut.