Hyderabad, Aug 11 - Misbun Sidek, coach of the Malaysian team participating in the World Badminton Championships here, has displayed symptoms of swine flu and his samples have been sent for testing for influenza A (H1N1) virus, organisers of the event said Tuesday.

'Sidek complained of throat pain last evening. His samples have been sent for testing. We don't want to take any chance. We are taking all precautions,' Pullela Gopichand, director of the organising committee and Indian team coach, told IANS.

Some policemen at the venue of the championship were seen wearing masks Monday night.

More than 250 players from 42 countries are competing in the six-day event that began Monday. The championship is the first of the series of world-class sporting event that India would be hosting ahead of the 2010 Commonwealth Games in Delhi.