By Alexia Krause
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| Janko Tipsarevic doing his best to qualify for ATP World Tour Finals |
VIENNA, Austria (TheSportsNEXT) October 19, 2012: Janko Tipsarevic of Serbia did a world of good to his chances of featuring in the season-ending ATP World Tour Finals on Thursday when he outplayed Ernests Gulbis of Latvia in straight sets by 6-3 6-4 at the Erste Bank Open.
