British number two Dan Evans is out of the Miami Open after losing in the second round to Italian Lorenzo Sonego.
Evans, seeded 23 and ranked 30 places higher than his opponent at 29th in the world, was beaten 6-4 3-6 2-6.
He was one of a number of seeds who went out of the tournament on Saturday in both the men's and women's draws.
Alex de Minaur and Matteo Berrettini exited, but the biggest casualty was women's sixth seed Coco Gauff, who lost to Russian Anastasia Potapova.
Australian De Minaur, the 15th seed, suffered an agonising 6-7 (5-7) 7-6 (7-3) 7-6 (10-8) defeat to Quentin Halys, the world number 79 from France.