Jan Ove Waldner, Laowa wrote her name and signed it for Laowa. According to the query of Aiwen Knowledge Network, the Swedish table tennis veteran "Lao Wa" refers to the Swedish table tennis player Yanova Waldner, who signed his name, that is, Lao Wa wrote his name Waldner to the fans. Waldner, a Swedish table tennis player, broke people's understanding of table tennis attack and defense because of his changeable playing style, and was dubbed the guerrilla captain by fans.