Jakarta, June 2 (IANS) Star shuttler Saina Nehwal's straight-game win in the pre-quarterfinals of the Indonesia Open Superseries was the lone bright spot as Rio-bound doubles pairs Jwala Gutta-Ashwini Ponappa and Manu Attri-B. Sumeeth Reddy crashed out on Thursday. World No.8 Saina registered a comprehensive 21-11, 21-10 win over local favourite Fitriani Fitriani to advance to the quarter-finals of the women's singles at the Istora Gelora Bung Karno Stadium here. Saina, who had beaten Fitriani at the Badminton Asia Championships in April this year, moved to a 9-7 lead and then raced to 14-7 with six consecutive points to easily pocket the first game.