Takatsuki, Osaka
During her childhood in Hebei, Sun's parents locked her in her bedroom in a bid to stop her playing football. She was a member of the state track and field team when she started football training in 1983 and joined the Hebei club in 1984. After the 1991 Women's World Cup, Sun accepted a transfer to the Japan Women's Football League with Matsushita Denki. She helped the Takatsuki, Osaka-based team win the league title in the 1994 season.