Result: Serena Williams obliterates Karin Knapp to reach Cincinnati Open quarter-finals

Serena Williams of the United States celebrates winning her semifinal match against Madison Keys of the United States during day 11 of the 2015 Australian Open at Melbourne Park on January 29, 2015
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Serena Williams cruises into the quarter-finals of the Cincinnati Open after handing Italian Karin Knapp a devastating 6-0 6-2 thrashing.
By , Reporter
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Last Updated: Friday, August 21, 2015 at 14:00 UK

Serena Williams has cruised into the quarter-finals of the Cincinnati Open after a devastating 6-0 6-2 thrashing of Karin Knapp.

The world number one demolished her Italian opponent in just 55 minutes, achieving a flawless first set before batting away Knapp's attempts to claw games back in the second set.

Knapp proved less of a challenge than Tsvetana Pironkova, the Bulgarian putting up a fight on Wednesday as the world number one secured a 7-5 6-3 victory.

Williams will take on the winner of Sloane Stephens and Ana Ivanovic.

Serena Williams celebrates with the trophy after winning the 2015 French Open women's singles at Roland Garros on June 6, 2015
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