New Delhi, Jan 5: Ace Indian shuttler Saina Nehwal sailed into the Korea Open Super Series quarterfinals after notching up a straight-game victory over Shao Chieh Cheng of Chinese Taipei in the second round in Seoul on Thursday.
Fourth seed Saina registered a 21-14 21-10 win over Cheng in a 36-minute battle in women's singles.
The Indian will next take on the winner of the match between China's Yanjiao Jiang and Inthanon Ratchanok of Thailand.
Commonwealth Games gold medal-winning pair of Jwala Gutta and Ashwini Ponnappa, however, were defeated by the formidable combo of top seed Xiaoli Wang and Yang Yu of China 10-21 17-21 in 34 minutes.
Saina didn't break much sweat against the world number 11 Cheng and tired her rival by engaging her in rallies.
The World number four Indian opened a four-point lead first up and then stretched it to 10-2. Cheng registered five straight points and tried to give some fight but it was Saina who pocketed the game.
In the second game, after lagging 0-3, Saina caught her opponent at the nets to draw level. A couple of unforced errors and a disputable line call helped her rival to move to 7-3.
Saina engaged her opponent in long rallies and forced her to commit errors to move to 7-7 before taking the lead.
The World Championship silver medallist didn't get her shots right as a lot of her half smashes went into the net or outside as Saina went into the break leading 11-7.
Saina ruled the roost after the break and moved to 14-8. The Indian varied the pace of the game and judged her rival well to gain points, reaching 20-9.
Cheng earned a point with a smash but after she hit a shot outside, Saina easily pocketed the match.