WIMBLEDON, England — Novak Djokovic can make tennis look easy, and he can make opponents look bad.
The defending champion did a bit of both on Centre Court at Wimbledon on Wednesday, beating Denis Kudla of the United States 6-3, 6-2, 6-2 in the second round.
Despite the straightforward score, however, Djokovic was short of perfection as he moves toward a fifth title at the All England Club. His serve was broken twice, once in each of the first two sets.
''There were some moments in the match where maybe I could have done better,'' the top-seeded Serb said.