UPDATE: Olympic badminton champion Lin Dan had an ideal preparation for his title defence when he won his fourth world title on Sunday in the Wembley arena to be used for the 2012 Games.
Read more here.
Who will win the World Championships in London later today?
World No 1 Lee Chong Wei hungers for the title - a title that would finally justify his world ranking.
Lin Dan, meanwhile, has won it all. It boils down to pride and ego.
So who would you bet on?
Catch the match live on Astro.
HD says: Chong Wei could finally net the world title.