Chinese badminton player Cai Yun has made significant contributions to the sport. Born in Suzhou, he began playing badminton in 1989 at an amateur sports school. His teacher suggested he try the sport, which led to a successful career.

| Season | Event | Rank |
|---|---|---|
| 2012 | Men Doubles | G Gold |
| 2008 | Men Doubles | S Silver |
| 2004 | Men Doubles | Quarterfinal |
Cai Yun faced several injuries during his career. In 2001, he underwent heart surgery due to light-headedness during high-tempo training. He described it as feeling like "a rabbit was hopping around in my chest." He also had a cyst removed from under his left armpit and injured a tendon in his knee during the 2007 French Open final.
In 2006 and 2011, Cai Yun and his doubles partner were named the Best Team by CCTV in China. One of his most notable achievements came in 2012 when he and Fu Haifeng won Olympic gold in men's doubles at the London Games. This victory made them the first Chinese players to achieve this feat.
Cai Yun resides in Beijing with his wife Wang Na and their daughter. Wang Na has also represented China in synchronised swimming, winning bronze in the team event at the 2008 Beijing Olympics. Cai Yun speaks Mandarin and lives a family-oriented life.
Cai Yun retired from competitive badminton in 2016. His career remains an inspiration for many aspiring athletes. His motto, "Nothing can stop me yearning for success," continues to resonate with fans and fellow players alike.
Chinese badminton player Cai Yun has made significant contributions to the sport. Born in Suzhou, he began playing badminton in 1989 at an amateur sports school. His teacher suggested he try the sport, which led to a successful career.