Saina Nehwal on Friday slammed the umpiring in her Round of 16 defeat to Denmark's Mia Blichfeldt at the BWF World Championships. In a match that lasted an hour and 12 minutes. Saina's husband and badminton player Parupalli Kashyap, who has been coaching Saina at the World Championships, was the first to express his displeasure about the level of umpiring.