BWF World Championships: Five-time world champ Lin Dan storms into the men's singles finals BWF World Championships: Five-time world champ Lin Dan storms into the men's singles finals Five-time World Champ Lin Dan Stormed Into The Men's Singles Finals In BWF World Championships On Saturday. Lin Dan Defeated Son Wan Ho In Straight Games To Seal A Berth In The Title Clash. News Nation Bureau | Edited By : Ashish Ranjan | Updated on: 26 Aug 2017, 11:17:40 PM New Delhi: Five-time world champ Lin Dan stormed into the men's singles finals in BWF World Championships on Saturday. Lin Dan defeated Son Wan Ho in straight games to seal a berth in the title clash.