Karolina Muchova and Tomas Machac were in imperious form as they saw off Italians Flavio Cobolli and Jasmine Paolini respectively at the United Cup. ( More Sports News) After Machac had defeated Cobolli 6-1 6-2 in under an hour, Muchova dispatched world number four Paolini 6-2 6-2 to seal Czechia's place in the last four.