Parupalli Kashyap, Saina Nehwal slam 'bad umpiring' at World Championships 0 8 23 Aug 2019 11:30 Timesofindia.indiatimes.com (sports) Indian badminton ace Saina Nehwal on Friday slammed the standard of umpiring in her BWF World Championships pre-quarterfinal loss to Denmark's Mia Blichfeldt, terming it "very sick".