Yan Zi and Tom Okker, have which mutual occupation?
Yan Zi (tennis) Yan Zi (; ; born November 12, 1984), is a retired Chinese-born Hong Kong female professional tennis player.
Mu Zi Mu Zi (; born 9 January 1989) is a Chinese female table tennis player. She is a two-time finalist in mixed doubles event at the World Championships. In 2015, she reached the semifinal of her first women's singles event at the World Championships.