3 female referees in a men's football match

The match between Yunnan Yunkun and Tianjin Jinmen Tiger is a milestone in the history of Chinese professional football: 3 female referees, including Xie Lijun, Bao Mengxiao and Dong Fangyu, were assigned to work for the match as assistant referees and fourth official. For the first time, as many as 3 female referees participate a match in Chinese Football League.