SINGAPORE – World No.1 Angelique Kerber laid down a marker at the BNP Paribas WTA Finals Singapore presented by SC Global with an impressive straight-sets win over Simona Halep on Tuesday.

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After edging a closely contested opening set, Kerber raced through the second, wrapping up a 6-4, 6-2 victory in an hour and 22 minutes.

“I’m feeling very good here. I’m really enjoying being back here on the center court and playing my best tennis,” Kerber told Andrew Krasny during her on-court interview. “I think we played a great match today.

“I try every time I step on court to give my best. Of course every match here is tough – it’s the best eight players in the world – and I’m just trying to focus on my game.”

Kerber’s concentration wavered only briefly in a high-quality opening set, surrendering an early lead to allow Halep to edge 4-3 ahead. The following game she found herself in further bother, Halep threatening another break only to be denied by a pin-point forehand pass.

This proved to be the turning point, the German breaking the next game before calmly serving out the set. She rammed home her dominance in the second set, breaking twice more and committing just three unforced errors to wrap up victory.

Kerber, who also won her first match, will next face Madison Keys. Should she take at least a set from the American on Thursday, she will be guaranteed a place in the semifinals. Even if Kerber fails to do so, she would still advance unless Halep defeats Cibulkova in straight sets.