NEW YORK (CBSNewYork/AP) — Keeping things quick in 90-degree heat, defending US Open champion Novak Djokovic wrapped up another easy victory to reach the third round, beating 112th-ranked Rogerio Dutra Silva of Brazil 6-2, 6-1, 6-2 on Friday.

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Djokovic didn’t face any break points and finished with more than twice as many winners, 29, as unforced errors, 14. He needed a little more than 90 minutes to make sure he would keep intact his record of never having lost to a player ranked outside the top 100 at a major tournament.

The second-seeded Serb has dropped a total of seven games through two matches this year at Flushing Meadows.

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Dutra Silva has never reached the third round at a Grand Slam tournament.

The Big 4 continues to breeze in the early rounds of Grand Slam tournaments. Sound off with your thoughts and comments below…

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