Djokovic sweeps Kudla in straight sets to advance at US Open

Defending champion Novak Djokovic's left shoulder appeared to be just fine as he put together a straightforward, straight-set victory over Denis Kudla to reach the U.S. Open's fourth round for the 12th appearance in a row.

The top-seeded Djokovic won 6-3, 6-4, 6-2 under the lights in Arthur Ashe Stadium.

He had complained about pain in his shoulder and repeatedly was visited by a trainer during his previous match.

Next will be a match Sunday against three-time major champion Stan Wawrinka.

Djokovic has won 36 of his past 37 Grand Slam matches.

He is pursuing a fourth title at the U.S. Open and 17th major trophy overall.