Alex de Minaur swept past Tomas Martin Etcheverry to win his first match of the season Saturday but it was not enough to prevent Argentina upsetting host Australia at the United Cup, while Switzerland beat France. The world number nine crushed his opponent 6-1, 6-4 to level the tie after teammate Olivia Gadecki crashed to Nadia Podoroska 6-2, 6-4 in …