National champion Abhinn Shyam Gupta maintained his momentum to reach the pre-quarter-finals in the German Open badminton tournament, even as former All England [ Images ] champion Pullela Gopichand [ Images ], Nikhil Kanetkar and Chetan Anand [ Images ] made an exit.

Gupta, who pulled off an upset, defeating 13th seed Roslin M Hashim of Malaysia in the first round, had no problems while outplaying Denmark's Kasper Oedum 15-6, 15-6 to book a date with Jang Young Soo of Korea in the round of 16.

In the women's section, national champion Aparna Popat bowed out in the pre-quarter-finals, losing to second seed Ruina Gong of China 4-11, 7-11.

Popat had beaten Judith Meulendijks of The Netherlands 10-13, 11-5, 11-6 in a first round match, played late last night.

In other second round matches, Gopichand was thrashed by Park Sung Hwan of Korea 15-2, 15-5, while southpaw Kanetkar went down to eighth seed Niels Christian Kaldau of Denmark, losing 4-15, 4-15.

Qualifier Arvind Bhat [ Images ] also bowed out in the same round, losing to 12th seeded Chinese, Lin Dan [ Images ], 11-15, 7-15 while Anand lost to Dane Joachim Persson 15-13, 12-15, 7-15.