Yao retiring Slowed by injuries,Rockets center Yao retires after 9 seasons.I am so sad that i saw this news.Yao is the first major chinese star to break into NBA.Yao was an eight-time NBA all-star and in five seasons he was voted onto the league,s second or third all-NBA team.He averaged 19.1 points and 9.3 rebouds and 1.9 blocks shots in his career.