The recently concluded World Championship 2013 in China saw a number of upsets.
The best games by far was the women's singles, with Thailand's Ratchanok Itanon beating Olympic champion Li Xuerui in a thrilling rubber game 22-20, 18-21, 21-14.
The other great game was the Mixed doubles which saw Natsir/Ahmad beating Ma Jin/Chen Xu 21-13, 16-21, 22-20.
The other games were status quo.
i.e. Women's doubles Yu Yang/Wang Xiaoli beating the lower ranking South Korean opponent.
Boe and Morgensen were somewhat 'upset' by the Indonesian pair of Ahsan/Setiawan.
Lin Dan beat Lee Chong Wei in a rubber game which saw Lee Chong Wei surrendering the game before completion at 16-21, 21-13, 20-17.
Lee Chong Wei claimed he suffered from crams. There was some controversy with the game, as the reports states, that the air-condition in the stadium was switched off in the 2nd game. The reason was the air-conditioned created some draft inside the stadium.