NEW YORK (AP) - Playing mostly mistake-free tennis, top-seeded Novak Djokovic reached the quarterfinals at the U.S. Open for the eighth year in a row - and 22nd consecutive Grand Slam tournament overall.
Djokovic, the 2011 champion at Flushing Meadows, made only 19 unforced errors, saved both break points he faced, and breezed past 22nd-seeded Philipp Kohlschreiber of Germany 6-1, 7-5, 6-4 Monday.
The last time Djokovic was eliminated before the quarterfinals at a major was a third-round loss to Kohlschreiber at the 2009 French Open.
Next up for the Serb, who reached the U.S. Open each of the past four years, will be a match against 2012 U.S. Open champion Andy Murray or ninth-seeded Jo-Wilfried Tsonga.
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