Chinese tennis star Zheng Qinwen secured an upset over No 6 seed Jessica Bouzas Maneiro of Spain in straight sets at the Athens Open on Monday. Currently ranked No 135 in the world, a free fall of 131 places from her career-high world No 4 spot last June, Zheng dispatched the 23-year-old in the first round, but it was not smooth sailing. In her first hard court appearance of the season, Paris Olympic champion Zheng almost lost a 3-0 lead in the opening set, allowing the world No 62 Bouzas...