Saarbrucken (Germany): B Sai Praneeth lost his singles pre-quarterfinal match against England's Rajiv Ouseph in a three-setter as Indian challenge at the Bitburger Badminton Open Grand Prix Gold came to an end here.

The 16th seeded Sai put up a brave fight before going down to the fifth seeded Englishman 21-17 6-21 18-21 in 50 minutes at the Saarlandhalle Saarbrucken.