Top seed Caroline Wozniacki and Venus Williams advanced to the Auckland Classic quarter-finals and kept alive the hopes of a final between the pair on Wednesday.
Denmark's Wozniacki had to battle back from a 5-2 deficit in the second set before overcoming American teenager Taylor Townsend, eventually winning 6-1 7-6 (7-4) to set up a tricky quarter-final clash with Germany's Julia Goerges.
Third-seeded Williams, who spent less than an hour on court on Tuesday, overcame Japan's Kurumi Nara 6-4 6-1 on Wednesday and set up possibly the pick of the quarter-finals where she will face Russia's Elena Vesnina.
In quarter-final action today, the Czech fourth seed who beat local hope Marina Erakovic, Barbora Zahlavova Strycova, faces American Coco Vandeweghe.
Marina Erakovic gets another centre court outing with Puerto Rican partner Monica Puig in their second round doubles match - the pair play the Czechs Andrea Hlavackova and Lucie Hradecka.
Wozniacki will take on Goerges in the afternoon, then Williams against Vesnina is the first feature scheduled for the evening.