Zhou Mi (; born 18 February 1979) is a Chinese badminton player. During much of her career she represented the People's Republic of China, but since 2007 she has represented Hong Kong which has a sports program and teams independent from those of the mainland. In 2010, she received a 2-year ban, for failing a drugs test. Career Since 1998 Zhou has won more than twenty international singles titles on the world circuit and has achieved number one world rankings at various times. She was a silver medalist behind compatriot Gong Ruina at the 2001 IBF World Championships and was a bronze medalist at the 2003 Championships. She won women's singles at the quadrennial Asian Games in 2002, defeating Gong Ruina in the final. Zhou is a three-time finalist at the prestigious All-England Championships where she captured the title in 2003. She played singles for world champion Chinese Uber Cup (women's international) teams in 2002 and 2004. Olympic controversy At the 2004 Athens Olympics Zhou reached the semifinal round where she was eliminated from gold medal contention by fellow countrywoman Zhang Ning. She then defeated Gong Ruina in the playoff for the bronze medal. The circumstances behind Zhou's semifinal defeat are controversial, however, because China's national coach Li Yongbo later confirmed rumors that he had instructed Zhou not to fight hard after she had dropped the first game to Zhang. His rationale was that a fresh Zhang Ning would have a better chance to defeat a non-Chinese opponent, the Netherlands' Mia Audina, in the final. "Retirement" and comeback Whether the Olympic episode or subsequent injury and poor performance was the primary cause, Zhou apparently retired from badminton during the 2005 season. She played no tournaments in 2006 but secured residence in Hong Kong through its Quality Migration program. Zhou then reemerged on the world badminton circuit during the 2007 season. From a weak start at the Singapore Open her results dramatically improved to the point where she had regained a number one world ranking as of the end of the year 2008. Since launching her comeback Zhou's titles have included the New Zealand and Philippines Opens in 2007, and the South Korea, India, Macau Opens, and China Masters in 2008. In December, Zhou ended the 2008 season by winning the BWF Super Series Masters Finals, the biggest prize money event in the sport. Positive clenbuterol test and two years ban