Combining Fu Haifeng's impressive power with his regular partner Cai Yun's impressive speed, Cai and Fu have been one of the world's leading men's doubles teams since 2004. They have won numerous top tier events on the world circuit including the venerable All England Open Championships in 2005 and 2009 and the BWF World Championships in 2006, 2009 and 2010. Cai and Fu have helped China win four consecutive Thomas Cup (Men’s Team World Badminton Championships) (2004, 2006, 2008, and 2010) and four consecutive Sudirman Cup (World Team Championships) (2005, 2007, 2009 and 2011). Cai and Fu also competed together in both the 2004 and 2008 Olympic Games. They were eliminated in the quarterfinals in 2004, and in 2008 in Beijing were silver medalists, losing a close final to Indonesia's Markis Kido and Hendra Setiawan.