World number one Novak Djokovic moved five matches from completing the first mens singles calendar-year Grand Slam in 52 years by advancing to the third round of the US Open on Friday. The 34-year-old Serbian cruised past 121st-ranked Dutchman Tallon Griekspoor 6-2, 6-3, 6-2 at Arthur Ashe Stadium to book a third-round date with 2014 [] The post Djokovic wins at US Open, moves five matches from Grand Slam appeared first o