Not content with owning a basketball team, studying business and making wine, China's former NBA superstar Yao Ming has now become the youngest — and tallest — legislative advisor in Shanghai. The 31-year-old was formally accepted as a member of an advisory body to Shanghai's legislature at the weekend -- a position that entitles him to make proposals for possible new laws -- the official China Daily reported. A photograph printed by the newspaper shows the 2.29-metre (7-foot, 6-inch) Yao towering above other newly selected members of the advisory body -- his latest venture since he formally retired from the Houston Rockets in July. “Raising proposals is very serious business and I do not want to be hasty,” Yao was quoted as saying. Since July, Yao's busy schedule has involved him going back to school for a university degree in business management and helping manage the Shanghai Sharks, a Chinese basketball team.