Garbine Muguruza and Carla Suarez Navarro won their respective matches to give Spain a 2-0 lead over Serbia on the first day of their Fed Cup clash in Kraljevo.
With both teams vying for a spot in the World Group I Play-Offs, Muguruza gave Spain just the start they needed as she eased past Ivana Jorovic 6-3, 6-1.
Muguruza broke Jorovic five times during the match, but was stopped from converting match point six times before the world number five was finally able to finish off Jorovic and give Spain a 1-0 lead.
Suarez Navarro doubled Spain’s lead when she downed Jelena Jankovic 6-4. 6-2.
Over in Hawaii, Sloane Stephens and Venus Williams handed the USA a 2-0 lead over Poland as they beat Magda Linette and Paula Kania respectively.
Stephens, who defeated Linette 6-2, 6-4 in an hour and 13 minutes, faced little trouble in the first set as she broke Linette twice en route to clinching it 6-2. Linette showed a lot more fight in the second set as she raced out to a 4-0 lead after breaking Stephens twice. However, Stephens battled her way back into contention and won the next six games, breaking Linette three times in the process, before converting the match point on her third attempt.
Venus Williams put the USA in command when she triumphed over Kania 7-5, 6-2. Williams was made to work hard for her victory in the first set before she found her groove in the second and finished off Kania in straight sets.
In Quebec, Belarus drew first blood against Canada before Aleksandra Wozniak brought Canada level at 1-1.
Aliaksandra Sasnovich put Belarus in front following a hard-fought 6-4, 2-6, 6-3 win over Francoise Abanda before Wozniak cruised past Olga Govortsova 6-2, 6-2 to keep Canada in contention.
Meanwhile, Australia and Slovakia are also tied at 1-1 heading into the second day of their Fed Cup clash in Bratislava.
Anna Karolina Schmiedlova gave Slovakia a 1-0 lead when she came from behind to beat Arina Rodionova 5-7, 7-5, 6-0.
However, Samantha Stosur brought Australia level as she defeated Jana Cepelova 6-3, 6-4.