Physical fitness is widely emphasized in Chinese culture, with morning exercises such as qigong and t'ai chi ch'uan widely practiced, and commercial gyms and private fitness clubs are gaining popularity across the country. Basketball is currently the most popular spectator sport in China. The Chinese Basketball Association and the American National Basketball Association have a huge following among the people, with native or ethnic Chinese players such as Yao Ming and Yi Jianlian held in high esteem. China's professional football league, now known as Chinese Super League, was established in 1994, it is the largest football market in Asia. Other popular sports in the country include martial arts, table tennis, badminton, swimming and snooker. Board games such as go (known as ''wéiqí'' in Chinese), xiangqi, mahjong, and more recently chess, are also played at a professional level. In addition, China is home to a huge number of cyclists, with an estimated 470 million bicycles . Many more traditional sports, such as dragon boat racing, Mongolian-style wrestling and horse racing are also popular.