South Africa women's coach Desiree Ellis has described their international friendly against the United States as their most difficult match ahead of the 2019 Women's World Cup.
Banyana Banyana head to California on May 12 for their eighth warm-up game as they hope to refine their strategies for their debut outing in France.
While they are winless in their last seven matches in their pre-World Cup games, Banyana have not won against the world champions, having lost 1-0 in their last meeting in 2016.
Editors' Picks
Ellis, who will be hoping to pick her final squad for the Women's World Cup this summer, feels there is no tougher test than facing the Americans.