AUCKLAND, New Zealand – Sloane Stephens made a confident start to both the season and her latest coaching partnership with a straight set victory over Polona Hercog.

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It was not all plain sailing for Stephens, who frittered away early leads in both sets before eventually prevailing, 6-3, 6-3.

“I think I was just trying to make it harder in myself! But it was good practice, so that’s good,” she said in her on-court interview.

However, the No.5 seed admits she and new coach Kamau Murray still have plenty to work on ahead of the upcoming Australian Open.

“I think the main thing we should focus on is that I won today and anything else will just wait for another day,” she added.

Stephens’ next outing will come on Wednesday when she takes on Carina Witthoeft, a 6-2, 7-6(3) winner in her all-German clash with Tatjana Maria.

Also advancing at the ASB Tennis Centre was Svetlana Kuznetsova, whose opening outing of the new season was cut short after just 49 minutes when her opponent, Mona Barthel, retired through injury. No.4 seed Kuznetsova, who was leading 6-2, 1-1 at the time, will face either Francesca Schiavone or qualifier Tamira Paszek in the second round.