Australian Open semifinalist Brady thinks quarantine helped February 17, 2021 GMT MELBOURNE, Australia (AP) — Jennifer Brady was one of 72 Australian Open entrants forced into a two-week hard quarantine — no leaving the hotel room at all, for any reason — because they potentially were exposed to COVID-19 on chartered flights bringing them to the country in January. And Brady is the only one who made it all the way to the singles semifinals at Melbourne Park. The 25-year-old American thinks the unusual experience might even have helped her perform as well as she did along the way to a matchup in the final four on Thursday night against Karolina Muchova of the Czech Republic.