BEIJING: World No.1 Angelique Kerber banished all negative thoughts as she beat qualifier Katerina Siniakova in two sets in the opening round of the China Open on Monday. The 20-year-old Czech played an impressive net game against the top seed but was unable to take control of the match, handing Kerber a 6-4, 6-4 win. “She played really well, especially in the first set. I was trying to being patient and waiting for my shots and for my chances,” Kerber told reporters after the match. The German, 28, won her second Grand Slam title of the year— and her career— at the US Open last month in the same week that also saw her rise to number one, dethroning long-reigning Serena Williams.