Result: Victoria Azarenka wins gruelling WTA Championships opener

Result: Azarenka wins gruelling Istanbul opener
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Victoria Azarenka wins her opening match of the WTA Championships in Istanbul with a tough straight-sets victory over Sara Errani.

Victoria Azarenka has won her opening match of the WTA Championships in Istanbul thanks to a tough straight-sets victory over Sara Errani.

The world number two looked down and out in the first set as she fell 2-5 behind, but Errani failed to serve it out three times before Azarenka fought back to force the tie-break.

The Belarusian then went on to clinch the tie-break 7-4 with an energy-sapping 90 minutes on the clock.

Both players exchanged breaks at the start of the second, but it was Azarenka who took advantage of a waning Errani by breaking the Italian twice more to close out the match 6-2.

Sara Errani in action against Olivia Rogowska during the first round of the US Open on August 27, 2013
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