Novak Djokovic is trying to solve riddles at the US Open but is back in the 3rd round

Djokovic improved to 36-0 across the first and second rounds in New York, a place he’s won four championships, by coming back to beat 145th-ranked American qualifier Zachary Svajda 6-7 (5), 6-3, 6-3, 6-1 at Arthur Ashe Stadium on Wednesday. “I really tried to soak it in and enjoy the moment, especi...