CNN  —  Monday was a day to forget for the Americans at the Miami Open , with six US representatives suffering defeat across the men’s and women’s singles. No. 3 seed Coco Gauff lost to the unseeded Magda Linette 6-4, 6-4, while defending champion Danielle Collins was beaten by the same scoreline by No. 1 seed Aryna Sabalenka. There were also straight set defeats for Amanda Anisimova – who went down 6-1, 6-3 to the improving Emma Raducanu – and Ashlyn Krueger, who lost 6-2, 7-6 to Olympic gold