NEW YORK (AP) Novak Djokovic needed all of 15 minutes to take the first five games against Sam Querrey, sending the top-seeded Serb on his way to the U.S. Open's fourth round for the eighth year in a row.

Djokovic's routine 6-3, 6-2, 6-2 victory Saturday put him in the round of 16 at a 22nd consecutive Grand Slam tournament.

Djokovic counts the 2011 U.S. Open among his seven major titles and has played in the past four finals at Flushing Meadows.

He had no trouble handling the big serves of Querrey, breaking the former top-20 player seven times in the 1-hour, 26-minute match.

Querrey's exit leaves one American man in the draw: 13th-seeded John Isner, who was to face No. 22 Philipp Kohlschreiber later Saturday, with the winner meeting Djokovic next.

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