
Katie Boulter's Great Britain defeated Argentina 2-1 in a huge boost to Australia's quarter-final hopes on a thrilling day four of United Cup action.
Boulter and Charles Broom sealed victory for Team GB with a 7-6 (7-4) 7-5 triumph over Maria Carle and Tomas Etcheverry in a one-hour, 45-minute deciding match at Sydney's Ken Rosewall Arena on Monday.