How did he and Wang choose each other?

Athletes choose their own partners. In the national team, athletes choose their own partners to participate. Sun Yingsha, female, was born in Shijiazhuang, Hebei Province on October 4th, 2000. She is a China women's table tennis player, who plays for the No.1 women's table tennis team in China. Wang, male, was born in Jilin on May 6, 2000. He is a China men's table tennis player and plays for the China men's table tennis team.