LONDON—Top seed Novak Djokovic has begun Wimbledon like a man on a mission, which considering the history the Serb is trying to create should come as no surprise. The 34-year-old described his 6–3 6–3 6–3 second-round win over twice Grand Slam runner-up Kevin Anderson as “almost flawless” and no one on Centre Court would disagree. His only slight issue was keeping his feet on the still-greasy turf, but his game was at its immaculate best as he appeared to be able to land each shot on a sixpence. Djokovic made only five unforced errors in a masterful display against the South African he also beat in the 2018 final. And while he did lose the first set of his opening round match against inspired British teenager Jack Draper, what has followed has been an ominous statement of intent. Djokovic is not only chasing a sixth Wimbledon title and third in …